President Oama pauses as he speaks to reporters in the Brady Press Briefing room of the White House in Washington, Friday, July 19, 2013. Obama says black Americans feel pain after the Trayvon Martin verdict because of a "history that doesn't go away." (Associated Press)

President Oama pauses as he speaks to reporters in the Brady Press Briefing room of the White House in Washington, Friday, July 19, 2013. Obama says black Americans feel pain after the Trayvon Martin verdict because of a "history that doesn't go away." (Associated Press)