WASHINGTON, DC – MAY 24: World Heavyweight Boxing Champion Muhammad Ali attends a news conference at the National Press Club on May 24, 2011 in Washington, DC. Ali and other prominent American Muslims and clergy appealed to Iran’s Supreme Leader for the release Shane Bauer and Josh Fattal, the two U.S. hikers detained in Iran since July 31, 2009. (Photo by Win McNamee/Getty Images)
