Neuroscientist Carl Hart says the U.S. should decriminalize all drugs, including crack. To help make his case, the Columbia University professor and author dispels some myths about the drug. Take a minute to listen to Hart's argument:

In this Oct. 10, 2006 file photo, a Los Angeles police officer counts the number of doses of crack cocaine, as he files an evidence police report after a drug related arrest. (Damian Dovarganes/AP)

Hart was a guest on WBUR’s On Point, where he talked about ending the “war on drugs.” Go here to listen to the full interview and learn more about his book, "High Price: A Neuroscientist’s Journey of Self-Discovery That Challenges Everything You Know About Drugs and Society."