Panama City's skyline. Arnulfo Franco/AP hide caption

itoggle caption Arnulfo Franco/AP

Marta Elsie Leveron, 19, (left) and her brother Freddy David Leveron, 18, have not seen their father since he left El Savador to work in California in 1999. A new U.S. program allows families to reunite if one parent is a legal U.S. resident. The girl in the middle is Liliana Beatriz Leveron, 16, a cousin of the other two. Her parents are in the U.S. and she's seeking to reunite with them as well. Carrie Kahn/NPR hide caption

itoggle caption Carrie Kahn/NPR

President Barack Obama walks with Brazilian President Dilma Rousseff, second from right, during a visit to the Martin Luther King Jr. Memorial in Washington, D.C., on Monday. Evan Vucci/AP hide caption

itoggle caption Evan Vucci/AP

Federal agents seized Elián González, held in a closet by Donato Dalrymple, in Miami in April 2000. Dalrymple rescued the boy from the ocean after his mother drowned when they tried to escape Cuba. Alan Diaz/AP hide caption

itoggle caption Alan Diaz/AP