US President Barack Obama and First Lady Michelle Obama visit a classroom at Coral Reef High School in Miami, Florida on March 7, 2014. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP via Getty Images)
US President Barack Obama and First Lady Michelle Obama visit a classroom at Coral Reef High School in Miami, Florida on March 7, 2014. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP via Getty Images)