U.S. President Obama gestures during a news conference with South African President Jacob Zuma, not pictured, at the Union Building on Saturday, June 29, 2013, in Pretoria, South Africa. (AP Photo/Evan Vucci)

Photo by: Evan Vucci

U.S. President Obama gestures during a news conference with South African President Jacob Zuma, not pictured, at the Union Building on Saturday, June 29, 2013, in Pretoria, South Africa. (AP Photo/Evan Vucci)