U.S. Attorney General Eric Holder speaks on stage during the annual meeting of the American Bar Association in San Francisco, California August 12, 2013. The U.S. Justice Department plans to change how it prosecutes some non-violent drug offenders, ending a policy of mandatory minimum prison sentences, in an overhaul of federal prison policy that Holder will unveil on Monday. REUTERS/Stephen Lam (UNITED STATES - Tags: CRIME LAW DRUGS SOCIETY)