US President Barack Obama (L) walks with Brazilain Foreign Minister Antonio Pratriota during an arrival ceremony at Palacio do Planalto in Brasilia, Brazil, March 19, 2011. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
US President Barack Obama (L) walks with Brazilain Foreign Minister Antonio Pratriota during an arrival ceremony at Palacio do Planalto in Brasilia, Brazil, March 19, 2011. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)