ADVANCE FOR USE SUNDAY, FEB. 23, 2014 AND THEREAFTER - FILE - In this April 28, 1967 file photo, heavyweight boxing champion Muhammad Ali is escorted from the Armed Forces Examining and Entrance Station in Houston by Lt. Col. J. Edwin McKee, commandant of the station, after Ali refused Army induction. Ali says he was a conscientious objector who would not serve in the Army of a country that treated members of his race as second-class citizens. (AP Photo)