Morales won the Bolilvian Presidential election; he's the first indigenous president of Bolivia as well as being president of the coca farmers' union, which is essentially a union of poor small farmers. According to this Morales is now going to nationalize all oil and gas reserves in Bolivia, which is a great thing, and presumably use the money to fund social programs, which is also great.
Not surprisingly, there're rumors that the U.S. will, clandestinely or not, launch an attack on Bolivia to try to oust Morales. This could either be by proxy, with Bolivian forces doing it, or it could be openly done, with a possible motive being "the drug war".
What people don't realize is that while "coca farmer", to U.S. ears, sounds like "Drug Kingpin", in reality not only has coca been farmed in Bolivia for hundreds, if not thousands, of years, but coca farming is virtually the only way these people have to make ends meet. As Noam Chomsky says, you can't just ask people not to eat because they're not making enough money not farming coca to feed themselves and their families. No, people do what's rational, which in this case is to farm coca.
As many, many, south american officials have stated here and there, maybe it would be better to focus on people in the United States itself that are using the drug, in all of its farms, rather than penalize small farmers who just want to make a little money.