Detainees sleep in a holding cell at a U.S. Customs and Border Protection processing facility, in Brownsville

Despite their differences on almost everything else, President Barack Obama and Texas Governor Rick Perry agree that the unlawful migration of more than 50,000 Central American children to the United States is a humanitarian crisis. Some members of Congress and U.S. military leaders label it a security crisis. Whatever it’s called, it is an emergency that requires immediate attention.