The flag above the White House flies at half-staff in honor of the late South African President Nelson Mandela on Friday, Dec. 6, 2013, in Washington. (AP Photo/Evan Vucci)

Photo by: Evan Vucci

The flag above the White House flies at half-staff in honor of the late South African President Nelson Mandela on Friday, Dec. 6, 2013, in Washington. (AP Photo/Evan Vucci)