President Barack Obama and Mexico's President Enrique Pena Nieto arrive for their bilateral meeting at the Palacio Nacional in Mexico City, Thursday, May 2, 2013. (AP Photo/Pablo Martin

 

              President Barack Obama and Mexico
President Barack Obama and Mexico's President Enrique Pena Nieto arrive for their bilateral meeting at the Palacio Nacional in Mexico City, Thursday, May 2, 2013. (AP Photo/Pablo Martinez Monsivais)