A note written by U.S. President Barack Obama and signed by both him and first lady Michelle Obama after they toured Robben Island, is seen on a guestbook at Robben Island, South Africa, Sunday, June ... more 
A note written by U.S. President Barack Obama and signed by both him and first lady Michelle Obama after they toured Robben Island, is seen on a guestbook at Robben Island, South Africa, Sunday, June 30, 2013. Robben Island is an historic Apartheid-era prison that held black political prisoners including former South African president and anti-apartheid hero Nelson Mandela. (AP Photo/Evan Vucci) less 
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Associated Press | Photo By Evan Vucci
Sun, Jun 30, 2013 11:29 AM EDT