Mark Kleiman is Professor of Public Policy at the University of California, Los Angeles and has worked on drugs and crime since the 1980s. He tells Alan Philps that the real issue is not prohibition or legalization, but reducing the damage done by drugs.
Colombia has paid a heavy price in battling the cocaine trade which at one stage threatened to destroy the country. President Santos, the most outspoken of Latin American leaders on drugs policy, tells Alan Philps that now the consuming nations must share the burden.