U.S. Attorney General Eric Holder recently said that a 2010 federal law that lowers prison sentences for crack cocaine offenses should be applied to inmates already in prison. That means nearly 12,000 prisoners could be released early, a vast majority of which are black. The U.S. Sentencing Commission is hearing testimony now. Host Michel Martin discusses these new developments with two people who have testified before the commission — Michael Nachmanoff is a public defender in Virginia and Christopher Chiles is the Chairman of the board for the National District Attorneys Association.