1.   Angry would-be coca farmers have repeatedly blockaded roads and towns.

2.   A coca farmer, Jancko sells some of his crop to an export company that ships the leaves to the United States.

3.   But critics say that the aerial spraying program has failed to reduce drug production levels in Colombia because coca farmers simply move on and plant more.

4.   But US congressmen have not talked to Colombian coca farmers.

5.   Coca farmers in southern Colombia ended talks with the government without agreement in a dispute over chemical spraying of illegal coca plants, El Tiempo reported.

6.   Government officials said the savings will go into law enforcement and economic development, but they concede that the policy is unpopular among coca farmers.

7.   He has ordered troops to keep tabs on coca farmers and destroy every illegal coca plantation in the nation within five years.

8.   In Bolivia, where eradication and alternative development have gone furthest, unemployed former coca farmers have swelled protests against the government of Hugo Banzer.

9.   Indeed, critics say it encourages coca farmers to move into remote jungle, and to plant twice as much, as an insurance policy.

10.   Some experts argue that coca farmers need more incentives to grow alternative crops.