Colombia Is Growing Record Amounts Of Coca, The Key Ingredient In Cocaine

To explain why he grows coca, the raw material for cocaine, rather than food crops on his 5-acre farm in southern Colombia, Luis Tapia does the math.

Every three months, Tapia, 60, harvests the bright green coca leaves with his bare hands, then mixes them with gasoline, sulfuric acid and other chemicals to make coca paste. He then sells the paste to drug traffickers who turn it into powder cocaine. A pound of paste, he says, sells for more than one ton of corn.

"That's why everyone grows coca," Tapia says.