U.S. President Barack Obama pauses during a town hall meeting with young African leaders at the University of Johannesburg Soweto on Saturday, June 29, 2013, in Johannesburg, South Africa.
U.S. President Barack Obama pauses during a town hall meeting with young African leaders at the University of Johannesburg Soweto on Saturday, June 29, 2013, in Johannesburg, South Africa. Evan Vucci AP
U.S. President Barack Obama pauses during a town hall meeting with young African leaders at the University of Johannesburg Soweto on Saturday, June 29, 2013, in Johannesburg, South Africa. Evan Vucci AP