Thousands of young immigrants, many of them from Central America, have crossed illegally into the United States this year, causing an unprecedented humanitarian crisis on the U.S.-Mexico border.
John Moore/Getty Images
Child detainees in a holding cell at a Border Patrol facility in Brownsville, Texas. Some human smugglers who bring children across the Rio Grande make sure to treat their clients well.
Boys in a holding area at a Border Protection center in Nogales, Ariz. Generally, minors are put into deportation proceedings and given a "Notice To Appear" in immigration court, but they have permission to stay in the country while the U.S. decides their fate.
Ross D. Franklin/AP
Romero is detained at a county park near McAllen, Texas, after wading across the Rio Grande. He says he left Central America to avoid conscription by street gangs and to join his family in the U.S.