harris whitbeck traveled there to see how the program is working. >> he has farmed this idyllic plotflant since she inthartd from her parents more than three decades ago. she is proud of her bountiful and diverse crops. it is this one concentrated on 1600 square meters of her land that is her favorite. this is coca, the leaf that has been used for medicinal purposes for centuries. it is the raw material for the production of cocaine. plants like hers have been at the centers of controversial between bol i haveia and drug enforcement agencies for years. the u.s. drug agency had enforced an aggressive and sometimes violent campaign of full eradication of the plants in the region claiming it was being sold to make cocaine. in the approximately, former leader of the coca groerdz union kicked the dea out of the country in 2008. >> the dea wanted to fully eradicate everything and the growers were opposed do that because coca is their livelihood. there was much violence and many deaths until we found this way out. >> morales put the control of the crops in the hands of the coca am groerdz'