The Last Word with Lawrence O'Donnell 04/02/13

CLEAN: Why America's losing the war on drugs

In his new book, New York Times best-selling author, David Sheff, writes about the nation's greatest tragedy: the war on drugs. Sheff talks with MSNBC's Lawrence O'Donnell about why the nation is losing its war on drugs and how the system needs to be ... more Duration: {{video.duration.momentjs}}