U.S. President Barack Obama and first lady Michelle Obama wave as they depart Waterkloof Air Base for a flight to Cape Town on Sunday, June 30, 2013, in Centurion, South Africa. The president is in ... more 
U.S. President Barack Obama and first lady Michelle Obama wave as they depart Waterkloof Air Base for a flight to Cape Town on Sunday, June 30, 2013, in Centurion, South Africa. The president is in South Africa, embarking on the second leg of his three-country African journey. The visit comes at a poignant time, with former South African president and anti-apartheid hero Nelson Mandela ailing in a Johannesburg hospital. (AP Photo/Evan Vucci) less 
1 / 30
Associated Press | Photo By Evan Vucci
Sun, Jun 30, 2013 4:24 AM EDT