U.S. Olympic medalists Tommie Smith, left, and John Carlos hold up their fists at the Mexican Olympic Committee building in Mexico City, Wednesday, Oct. 15, 2008.

U.S. Olympic medalists Tommie Smith, left, and John Carlos hold up their fists at the Mexican Olympic Committee building in Mexico City, Wednesday, Oct. 15, 2008.

U.S. Olympic medalists Tommie Smith, left, and John Carlos hold up their fists at the Mexican Olympic Committee building in Mexico City, Wednesday, Oct. 15, 2008.

U.S. Olympic medalists Tommie Smith, left, and John Carlos hold up their fists at the Mexican Olympic Committee building in Mexico City, Wednesday, Oct. 15, 2008.