on producer countries The United States' "War on Drugs" has added considerably to the political instability in South America. The huge profits to be made from cocaine and other South American-grown drugs are largely because they are illegal in the wealthy neighbouring nation. This drives people in the relatively poor countries of Colombia, Peru, Bolivia and Brazil to break their own laws in organising the cultivation, preparation and trafficking of cocaine to the States. This has allowed criminal, paramilitary and guerrilla groups to reap huge profits, exacerbating already serious law-and-order and political problems. Within Bolivia, the political rise of former president Evo Morales was directly related to his grassroots movement against US-sponsored coca-eradication and criminalization policies. However, coca has been cultivated for centuries in the Andes. Among their various legitimate uses, coca leaves are chewed for their mild stimulant & appetite suppression effects, and steeped as a tea which is known to reduce the effects of human altitude sickness. Rural farmers in the poor regions in which coca has historically been cultivated often find themselves at the difficult and potentially violent intersection of government-sponsored eradication efforts, illegal cocaine producers & traffickers seeking coca supplies, anti-government paramilitary forces trafficking in cocaine as a source of revolutionary funding, and the historical hardships of rural subsistence farming (or its typical alternative – abandoning their land and fleeing to an urban slum). In some regions, farmers' coca and other crops are frequently destroyed by U.S.-sponsored eradication treatments (usually sprayed from the air with varying degrees of discrimination), whether or not the farmers directly supply the cocaine trade, thereby destroying their livelihoods. Agricultural producers in these countries are pushed further to grow coca for the cocaine trade by the dumping of subsidised farming products (fruit, vegetables, grain etc.) produced by Western countries (predominantly US and EU agricultural surpluses) (see BBC reference, below), which reduces the prices they could otherwise receive for alternate crops such as maize. The net effect can be a depression of prices for all crops, which can both make the farmer's livelihood more precarious, and make the cocaine producers' coca supplies cheaper. After providing a significant portion of the world's poppy for use in heroin production, Afghanistan went from producing practically no illegal drugs in 2000 (following banning by the Taliban), to cultivating what is now as much as 90% of the world's opium. The Taliban is currently believed to be heavily