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Nano-Urea: A solution to presentfertiliser crisis?



By R.S. Dharmakeerthi

Professor in Soil Fertility and Nutrient management
University of Peradeniya

Safeguarding the food security is a prerequisite for ensuring national security. We can produce enough food or generate enough foreign exchange to purchase food to achieve food security. If we fail to secure these two, we will have to abide by the conditions set forth by other countries. Under the current global geopolitical battle to secure safe spaces, the super powers will always look for opportunities that they can capitalise in countries that are strategically important such as Sri Lanka. The current fertiliser crisis in the agriculture sector of Sri Lanka is making us even more vulnerable.

Organic Agriculture Mania

On 27 April, the Cabinet took a bold decision to ban the use of agrochemicals, almost overnight, to provide the nation with safe and healthy food. Recently, Senior Professor Udith Jayasinghe Mudalige, the Secretary to the Ministry of Agriculture, has gone on record admitting that the sudden 100% organic agriculture was based on the wrong advice. If someone can mislead a government on a matter related to national security, then there must be something terribly wrong. The authorities now say a phase-out transition to 100% organic agriculture within a period of 3-5 years could have been the best policy. One could see the determination of the government to go for 100% organic agriculture. There are enough scientific publications that insist that crop yield will be reduced by 20-25% on average in organic agriculture leading to food insecurity of a country. Therefore, not the transition period, but the concept of 100% organic agriculture itself is a threat to national security.

Chemical fertilizer is not poisonous

The government still believes that chemical fertilisers are poisonous and have led to a number of non-communicable diseases including the chronic kidney disease of unknown etiology (CKDu). Those who have a knowledge on soil science reiterate the fact that at rates of fertiliser applied in Sri Lanka, there is only a very low risk on health. For example, a final report of a government-funded research project on CKDu, led by Senior Professor Rohana Chandrajith of the University of Peradeniya can be considered a case in point. According to that report, causes for CKDu have been narrowed down to three reasons; namely fluoride content and magnesium content in drinking water, and low water intake by farmers. None of these causes are related to agrochemicals used in those areas. Even for other health issues highlighted by 100% organic supporters, a cause-effect relationship has not been established by scientific investigations.

Deficit of organic fertiliser

If the governments strive for 100% organic agriculture, they first wanted to produce the required quantities of organic fertilisers within the country and within 3-4 months before the next cropping season (i.e. this Maha season) starts. They failed to achieve this target and farmers are demanding fertilisers. Then without listening to the outcry of scientists not to import organic fertilisers, as it is a threat to our bio-diversity, plant and animal health, the government decided to import an “organic nitrogen fertiliser” from a Chinese Company. At least two sets of randomly drawn samples from these organic fertiliser stocks were found to be contaminated by pathogens and micro-organisms. Later, the government announced that they will not allow this seaweed and manure-based nitrogen fertiliser to enter the country. The Chinese government then issued a press release saying that our test reports were not accurate. Despite all this the ship carrying the fertiliser lot is still sailing, and we will have to wait and see how the Sri Lankan government will handle the pressure from the Chinese government to accept that fertiliser lot.

Produce from agricultural lands is the lifeline and only income source of the farming community. They are in dire need of fertilisers. Some farmer societies have even decided not to accept water from the irrigation tanks until there is an assurance from the government on fertilisers. If fertilisers are not provided on time to farmers, this could lead to another crisis; management of water in irrigation tanks.

Nano-Urea: An illusion

The government has decided to purchase an alternative fertiliser called “Nano-N” from India. Part of this fertiliser was airlifted as the cultivation has already started in some parts of the country and received on 20t October. Again, Secretary to the Ministry of Agriculture was on record saying it was a highly efficient “organic” liquid nitrogen fertilser. One hectare of paddy land requires only 2.5 liters of this Nano-N. This time someone has given the wrong advice to the Ministry of Agriculture and the government.

The patent right for “Nano-N” fertiliser is owned by Indian Farmer Fertiliser Corporations Ltd. (IFFCO) and is produced in a factory owned by IFFCO in Gujarat. They invented this technology in 2019 and released for commercial purposes in June 2021. This suggests that even in India there is a limited experience on the use of this fertiliser. To the best of my knowledge there is no experimental evidence on the use of this product under Sri Lankan conditions. There are some important aspects of this Nano-N that farmers and general public must be aware.

If this is a “organic” fertiliser, as the Secretary to the Ministry of Agriculture states, this must be imported into the country according to the conditions set forth in the Plant Protection Act following proper protocols to avoid another fiasco like the Chinese organic fertiliser issue. But what authorities is hiding from the public is that this “Nano-N” is actually a synthetic fertiliser that cannot be used in organic agriculture. According to the web site of IFFCO, this product is actually called “Nano-Urea” and hence cannot be organic.

This “Nano-Urea” contains only 4% nitrogen as against 46% nitrogen in urea granules. If only 2.5 litres of “Nano-Urea” is applied per hectare, rice plants will receive only 100 grams of nitrogen. This is assuming 100% efficiency which we will never achieve in nature. The most important point here is that to produce five tons of paddy harvest from one hectare, plant needs 105 kg of nitrogen of which 50 kilos of nitrogen are in grains. Therefore, anybody can calculate how many liters of “Nano-Urea” is required to produce the expected yield. That is 1,250 liters of “Nano-Urea” per hectare to provide at least the nitrogen that is removed from paddylands with harvest (i.e. 50kg N). Because of this, the limited available Indian research indicates that “Nano-Urea” cannot be applied as the only source of nitrogen but must be used together with at least 50% of nitrogen from other organic and chemical sources. By giving farmers only 2.5 liters of “Nano-Urea”, farmers will definitely reduce productivity. Our research evidence suggests that paddy yield loss due to lack of nitrogen fertilisers could be around 16-60% depending on the site characteristics. Therefore, “Nano-Urea” will endanger our national security as we will have to depend on other countries for our staple food.

According to the IFFCO website, 500ml bottle of “Nano-Urea” costs about Rs.640 (Indian Rs.240). Even if airfreight and other costs are ignored, the cost of one kilo of nitrogen in “Nano-Urea” is Rs.31,000, where as one kilo of nitrogen in granular urea is only Rs.130. No wonder why the government has decided to provide only 2.5 liters of “Nano-Urea” per hectare. What this writer cannot understand is that a much cheaper synthetic fertiliser like urea has been banned in their quest for 100% organic agriculture and then import another type of synthetic urea fertiliser at a price of 240 times higher. The government has ordered 3.1million liters of “Nano-Urea” from IFFCO at a cost of Rs.4,000,000,000 (Rs. four billion according to the figures given above). If farmers need to obtain their expected yields, the government has to provide farmers with additional sources of nitrogen. But the country has not produced enough organic or bio fertilisers to provide at least one-third of nitrogen required by different crop sectors.

The government is creating an illusion that the “Nano-Urea” is a wonder product that can replace 50kg of urea bag with just half a liter of this liquid nano-fertiliser. Of course, they are relying on the information provided by the IFFCO. According to IFFCO, because urea is in “Nano” size particles, plants can absorb nitrogen from this product easily and utilize efficiently. What they probably not aware or hide from the public is that urea is 100% water soluble and they dissolve almost instantaneously disintegrating urea granule into urea molecules. The size of a urea molecule is much smaller (approximately 0.3 to 0.5 Angstrom in different dimensions) than that of a “nano-urea” particle (200 to 500 Angtrom). If the size determines the absorption efficiency, then dissolved urea must get absorbed faster. Therefore, the question is why “Nano-Urea” needs to be produced in the first place. According to the limited literature on “Nano-Urea” this writer reviewed, the IFFCO conducted field experiments do not have a liquid urea only treatment to compare with “Nano-Urea” treatment. This raises some concerns, at least in this writer’s opinion, on the significance of this wonder product.

Nano products are new to the environment and not enough research has been conducted on the long-term effects of nano particles on human health and environment. Therefore, in many organic agriculture certification systems nano fertilisers are not allowed. Therefore, before such new products are introduced, adequate research must be conducted in a given environment to ensure environmental sustainability that is expected from organic agricultural systems.

Finally, if the government is not taking evidence-based advices from their “advisors”, we can only wait and see what will become of our food security and hence the national security vis-à-vis the interests of world powers.

The writer can be reached at or +94-77 264 0505

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Impressive Indian scene…



Some of the live streaming events, on social media, have brought into the limelight quite a few impressive performers, hailing from India.

Just recently, I checked out the live performance of Stephanie Sutari, and her sister Desiree, and found the duo very entertaining, and so the spotlight this week is focused on the singing sisters.

Stephanie says it’s her very supportive parents who encouraged her to go for piano/music classes, at a young age of eight, as a hobby. Later, she joined the church choir and participated at various singing competitions.

Before long, Stephanie was lending her voice for voiceovers and jingles for advertisements.

Ssys Stephanie: “I only considered it as a career option, in my late teens. So I completed my post-graduation, in Media, but decided to follow my heart and take up singing, full time.”

However, coming from a non-musical background, it was a challenge for Stephanie to make her way into the industry, but, she says, she was determined and extremely driven.

“They say, the universe falls in love with a stubborn heart, so, initially, I stayed in my comfort zone and started singing, professionally, in English only…but living in Mumbai – the heart of Bollywood, I decided to utilise my resources and get out of my comfort zone; you may call it fate (I believe it’s my grandparents blessings), I was offered a break with one of the best entertainment bands in India – Rodney and the Band, at the age of 22. Yes, I became a full time Bollywood singer and started touring with them, all over the world.”

Talented Stephanie branched out, from singing only English songs, to enhance her repertoire by including songs in over 10 languages – Telugu, Gujarati, Punjabi, Konkani, Marathi, Hindi (Indian languages), Spanish, Portuguese, Italian, and a few African languages, like Zulu, Duala.

She has performed for over 1000 shows, all over the world, including Hong Kong, Thailand, Malaysia, Dubai, Bahrain, Tanzania, Ghana, Uganda, Lagos, and Indonesia.

“I love to travel and if I’m not travelling on work (which is extremely rare), I travel on vacation….My most favourite travel destination is Europe, with Switzerland and Paris being right on top.”

Stephanie goes on to say that the best part of her family gatherings was the sing-along sessions and she then realised how music had the power to uplift people’s mood.

“So, when the pandemic hit, I started an official Stephanie S page, on Facebook, to help people go through the tough times, with a little hope, and went I live, once a week, to bring people, and their love for music, together. The response was overwhelming ‘cos I reached out to so many people, from all over the world, from the comfort of my home. The interesting fact is, I got my best friend Mathew Varghese, on board, who controls the entire audio and video technicalities, sitting in another country, Kuwait, online.

“My little sister, Desiree, who has a magical voice, and moves that drove my viewers crazy, soon became an integral part of my live performances, as well, and today she’s more in demand for her charisma and melodious singing. She has just started her musical journey but has a promising future in music ahead of her.”

Referring to her future plans, Stephanie said it’s to make a mark in the global music industry, by showcasing her talent.

And, her message to the next generation: “It’s important to follow your dreams, but it’s also important to complete your education first. Knowledge is Power,”

Winding up our chit-chat, Stephanie said she has never been to Sri Lanka but is eagerly looking forward to spending a vacation in the ‘Wonder of Asia’ as soon as time permits.

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Dissemination of ‘real time’ meteorological information to domestic aviation community



On July 3, 1971, during the first JVP insurgency, while I was working with the then Royal Ceylon Air Force (RCyAF), based at China Bay, in Trincomalee, I reported to the squadron early morning and was told by our Officer Commanding the No. 3 Maritime Squadron, Flt Lt Denzil Fernando, that I was assigned to fly as ‘Second Dickie’ to Sergeant-Pilot Tony (Tuan Mohamed Zachariah) Dole in a de Havilland Dove with serial (registration) CS 406. We were to go to Vavuniya to pick up the then Government Agent (GA), Neville Jayaweera, and take him to Ratmalana (RMA).

Our trip to Vavuniya was uneventful, except that the runway, unused for many years, had been cleared and secured by the Army, with soldiers standing at regular intervals along the full length of the runway. After the GA boarded the plane we got airborne and set course for Ratmalana. It was a bit cloudy when we started. Soon the clouds got heavier, and we had to fly through the clouds to maintain our course. Not long afterwards, the weather became worse, and turbulence in the clouds caused our eight-seater D.H. 104 Dove to shake like a leaf in the wind.

The twin-engine transport plane didn’t have Airborne Weather Radar (AWR) to avoid rain clouds. AWR works on the principle that the more turbulent a cloud, the greater the mass of water it will support. This will ‘bounce’ off radar signals emitted by the aircraft, and will be proportional to the cloud thickness, thereby providing an image of the turbulence, within the cloud mass, as indicated on a screen in the cockpit of the aircraft.

Without AWR, our only option was to reduce speed to make the ride as comfortable as possible for the GA (and us), not unlike when driving on a bumpy road, and then ‘eyeballing’ the weather and hoping for the best by avoiding the more intense rain clouds. The only weather forecast reports available to us were for China Bay and Ratmalana airports, but no information whatsoever on observed weather en route.

By now, flying in cloud, we had lost sight of the ground and were unsure of our position. We were avoiding clouds to the best of our ability. The vertical development of some of the clouds were in excess of 10,000 ft at some places. So we decided to go below the cloud base, which was fortunately higher than existing terrain, so we could maintain sight of ground or water to pinpoint our position. In aviation parlance, this is known as a ‘visual fix’ of position.

We also flew further west towards the coast to reduce the chances of rising terrain (hills). Soon we spotted, through the rain, the unmistakable coastline, of Kalpitiya and Puttalam, enabling us to positively establish our position. We then continued to follow the coastline at low leve,l to RMA, flying under the jet aircraft approach path at Bandaranaike International Airport (BIA), Katunayake, and towards Colombo.

The air traffic control towers at Katunayake and Ratmalana were also reporting heavy rain showers. We found a patch clear of cloud, south of the Ratmalana airport, over Bolgoda Lake, and began circling there. But Sgt. Dole had an ace up his sleeve. He told me that showers present under cloud cells usually come in waves that transit the airport, and the best bet was to wait and land between the showers that we could see well from our vantage point in the south.

Sure enough, as soon as one rain shower passed the airport, we were well positioned to turn in and land in relatively clear weather with only a slight drizzle, before the next downpour hit.

This was exactly 50 years ago. We didn’t have radio navigational aid, except the Non-Directional Beacons (NDBs) at China Bay, BIA and Ratmalana that operated on low to medium frequency and were affected by bad weather (thunderstorms) and thus rendered useless in our circumstances described here. In fact, the signals emitted by Radio Ceylon were sometimes stronger! In addition, there were two Very High Frequency (VHF) Omni Radio Range stations (VORs) at BIA and RMA, but our aircraft was not equipped with a receiver that could be used in conjunction with the VORs. They were meant for the ‘big aircraft’. Other countries had Distance Measuring Equipment (DME) associated with the VOR, but not Ceylon.

Therefore, pilots had to navigate by a process called ‘Dead Reckoning’, which involved estimated ground speed and time over known ground features (cities, rivers, roads, railway lines and buildings for example). ‘If you reckoned wrong you were dead!’ To add insult to injury, we didn’t have ‘real-time’ observed meteorological information available to us in terms of cloud base and intensity of rain to help us make informed decisions as to what route to follow.

Today, technology has improved worldwide in leaps and bounds. We have ‘smart’ cellular phones and tablets with Global Positioning Systems (GPS). We have capabilities of providing better facilities to domestic air traffic, consisting of landplanes, seaplanes and helicopters. For many years we have had a radar station positioned on Pidurutalagala, the highest point in the island. In fact, we can even monitor certain areas of South India.

Unfortunately, real-time meteorological information is still not available as Sri Lanka has not invested in a communications system capable of providing such information. More than 15 years ago, Singapore installed a radar system at Changi Airport that was capable of giving information to pilots on the intensity of rainfall relative to their airports. We are told that Sri Lanka’s Meteorological Department invested Rs.200 million, in 2013, on a Doppler radar system which, in their so-called ‘wisdom’, they wanted to site at Deniyaya. But it was never installed, and the equipment is now in storage in damaged condition after it went ‘down the pallang’ while being transported there!

Today, there are many free websites which provide highly accurate satellite-based weather forecast information at a click of a button. It is also available on ground to flight dispatchers. It is therefore sad to note that the weather forecasts, produced by our Meteorological Department (who should be playing a key role) are not used by the aviation community, almost certainly due to a lack of confidence on the part of pilots and aviation operations officers. It should also be noted that in Sri Lankan domestic aviation, along with the satellite weather forecasts, the actual observed weather, must go hand in hand. Even this is still not provided by the Met’ Department. I believe that this is a major lapse.

The following incident illustrates the stark reality of what the current situation is for domestic operators. A few days ago, a commercially important passenger (CIP) was flown to Anuradhapura by a domestic air charter company to attend celebrations commemorating the two-year anniversary in office of President Gotabaya Rajapaksa. The outbound flight to Anuradhapura was uneventful. For the return flight to RMA, the flight dispatcher based at Ratmalana had to plan the flight. While the general weather forecast was rain, standard practice relied on the observed actual en route weather by police stations on the way: at Galgamuwa, Nikaweratiya, Kuliyapitiya, Divulapitiya, Palavi, Chilaw, Wenappuwa and Negombo.

All these observers are local police personnel, not qualified aviation or meteorological professionals. Consequently, their very subjective ‘met reports’ are along the lines of “the sky is dark”, “it is about to rain”, “it is now drizzling” or “heavy showers”, from which the flight dispatcher has to form a mental picture of what the en route weather is. One wonders what the insurance implications would be if an accident occurs.

To continue, the hapless pilot at Anuradhapura, who was in touch with his dispatcher on his cellular phone before departure, had to evaluate the risks and make an informed decision. Like Sgt. Dole and I did 50 years ago, he had to get airborne and ‘play it by ear’, so to speak. So, having reached the western coastline, he followed it all the way to Ratmalana. As a matter of interest, I was able to follow the progress of this single-engine light aircraft through one of the free apps on my smartphone, via satellite. That is what prompted this article.

I regard it as an absolute shame that in the last 50 years the Colombo Met’ Department has been unable to provide useful ‘real-time’ meteorological observations to domestic air operations. Yet to satisfy the international aviation community in the gathering of weather data, they have observation stations at all of Sri Lanka’s international airports. But it is a case of thus far and no further. Scrutinising the Meteorological Department’s website will reveal that they have weather observation stations in Kankesanturai (KKS), Jaffna, Mullaitivu, Vavuniya, Mannar, Trincomalee, Anuradhapura, Mahailluppallama, Puttalam, Batticaloa, Kurunegala, Kandy, Nuwara-Eliya, Badulla, Diyatalawa, Pottuvil, Ratnapura, Katunayake, Ratmalana, Galle and Hambantota. These stations are connected to the World Weather Watch (WWW) through a Global Telecommunication Network (GTS). I do not know whether they are automatic as in other parts of the world, or require a qualified human observer.

The sad part is that this real-time information is not available to domestic aviation operators (of both fixed-wing aircraft and helicopters) who have to rely on amateurish police station observations and information. If the observed real-time weather is brought online with a good communications network comprising more observation stations established at all the other domestic airports, weather updates will enhance and synergize air safety in real-time.

I do not know who is responsible for this unacceptable state of affairs, but certainly the Civil Aviation Authority Sri Lanka (CAASL), Airports and Aviation Sri Lanka (AASL), the Sri Lanka Air Force (SLAF), and the ‘keepers’ of some of the domestic airports should coordinate with the Met’ Office and have real-time weather reports available for all domestic flights.

More recently it has been reported, in the local media that the Colombo Met’ Office and Japanese International Cooperation Agency (JICA) have signed an agreement for two more weather radar stations, to be sited at Puttalam and Pottuvil, to replace the one that never ‘got off the ground’ at Deniyaya. Will JICA be able to help in establishing automatic observation stations accessible to domestic aviators, to determine and report on such vital meteorological data as cloud base, intensity of rain, wind direction and speed, and temperature, as a fundamental component of good communication?

It is sad that the ‘end users’ are never consulted in important matters such as these.

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The ‘Summit for Democracy’ and its welcome stress on governance quality



A ‘Summit for Democracy’ conceptualized and organized by the US is expected to be conducted on December 9th and 10th in virtual mode and some major world powers, such as China and Russia, have not been invited to it. Such developments ought not to prompt any sections that matter in this connection to look askance at the US over its choice of invitees in consideration of the fact that politics are very much at the heart of such decision-making. It could not be otherwise, since politics are the ‘stuff and substance’ of international relations.

It should not come as a surprise too if the aim of the US in calling this forum is to project its power and influence globally. This should be expected of a super power. The forum could have the effect of accentuating international political cleavages and this too must be expected. Realpolitik is what we are up against in this summit to a considerable degree and it could not be otherwise.

However, the hope of progressives the world over is likely to be that the essentials of democracy would come to be discussed and stressed, despite these serious constraints posed by politics. It is also hoped that the quality of democracy would receive adequate scrutiny and ways worked out as to how accountable governance could be advanced. In the absence of these inputs the summit would come to nought.

Democratic opinion the world over considers democracy to be chief among the US’ soft power assets. If the US political leadership thinks so too, the opportunity has come its way through the summit in question to prove to the world that this is really so. For example, the US cannot shy away from the need to make its territory safe and welcoming for all its ethnic communities, particularly minority groups.

The US should ideally be guided by the principle that every form of life within its boundaries ‘matters’. Such questions are at the heart of democratic advancement. The resolution of issues of this kind by any purported democracy has a close bearing on the quality of democracy manifested in it.

Reverence for life is at the centre of democracy. In this connection it is discouraging to note that students and teachers are continuing to be gunned-down in some US High Schools. In one such recent incident, two students and a teacher had been reportedly killed in a High School in Michigan, while scores of others had been injured. As a self-professed advanced democracy, the US is obliged to re-examine its Gun Laws and explore the possibility of doing away with them, so as to protecting life and nurturing a pro-peace culture within its borders. However, the US’ obligations by way of advancing the quality of its democracy do not end here. Much more needs to be done in a range of issue areas, but Gun Laws ought to be prime among its concerns.

India and Pakistan are two key states in South Asia that have been invited to the summit and this ought to be a high moment for them. Since South Asia’s advancement in a number of areas depends crucially on these regional heavyweights the hope of progressives is likely to be that the people of South Asia would gain eventually through the engagement of India and Pakistan in these deliberations on democracy.

The fact that Sri Lanka has been left out of the summit ought to be worrying for it. Fire-breathing nationalist opinion in Sri Lanka is likely to be of the view that this counts for nothing and that the US is in no position to sit in judgement over other countries on issues relating to democratic development. These nationalists are also likely to vociferate that Sri Lanka could depend on its ‘all-weather friends’ in Asia for support in a number of areas and that Western support is not of much consequence for its sustenance.

But such positions fly in the face of hard political and economic realities. To begin with, no major power in Asia would come to Sri Lanka’s rescue at the cost of its own political and economic links with the West. These powers’ economic wellbeing is integral to their having cordial ties with the US, for instance. China cannot afford to neglect its trade and investment ties with the US and vice versa. China would not risk too much for Sri Lanka’s sake.

Besides, there is the case of Uganda to consider. It has scarred itself badly by mortgaging some of its real estate to outside powers. Today, the latter are reportedly staking a claim to what they seem to have lost by forcibly occupying the territories concerned in Uganda. Small countries, such as Sri Lanka, have no choice but to relate cordially with all the major powers.

Of the subjects that are expected to come up for discussion at the summit, ‘Advancing respect for human rights’, ought to be of prime importance. This is at the heart of democratic development and it ought to be clear that countries that do not respect fundamental human rights could not be part of any discussion on democracy. Accordingly, authoritarian states cannot sit at conference tables of this kind. It ought to be equally plain that ‘one man rule’ or one-party rule could not figure in these talks since such dispensations are antithetical to basic human rights.

Currently, even in the West, the suitability of the US to head the summit in focus is being vigorously questioned and there are acceptable grounds for this. While it could be argued that the US is a flawed democracy, it needs to be remembered that the foremost democracies are growing, evolving and dynamic systems and are not static and stagnant in nature in those cultural environments that favour their adoption. Accordingly, democracy cannot be rigorously defined. Essentially, it could be defined only in terms of what it is not. For example, political systems that do not nurture individual rights cannot pass muster as democracies.

Thus, the summit offers opportunities for a fruitful discussion on what must be done to keep democracy ticking. Ideally, major democracies in Asia too need to conduct such parleys on ways of benchmarking democratic advancement. India, for one, could take on this responsibility, being one of the most advanced democracies in our region.

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