Henry Rollins Traces the Racist Origins of Marijuana Prohibition images.investorshub.advfn.com/images/uploads/2014/10/26/eywwb720x405-91144168.jpg The singer has resumed trawling history for facts about weed, the American flag and more for the H2 series '10 Things You Don't Know About' http://www.history.com/shows/10-things-you-dont-know-about/videos