Ethan Nadelmann talks about prohibition and criminalization of drugs in the United States and around the world. He comments on the existence and social acceptance of some common legal drugs through time and explains that prohibition has been a result of cultural and racial conflicts in the United States. As banning drugs has proven not to be the best approach towards this issue, Nadelmann proposes an alternative based on science, economic rationality, consensus and debate that can be the most efficient way to solve this inconvenient and problematic reality.