Bolivian President Evo Morales defended Bolivians' right to chew coca leaves, the main ingredient of cocaine, on Monday, saying it was an ancient radition and the world's No. 3 cocaine producer was working to fight drug trafficking. Holding up a coca leaf to help underline his message at a United Nations anti-drugs meeting in Vienna, the leftist leader, a former coca leaf farmer, said coca leaf producers were not "drug dealers" and it was not the same as cocaine.