Immigrant adults and children huddle as a U.S. Border Patrol agent questions them near Anzalduas Park, southwest of McAllen, Texas, Wednesday, June 11, 2014. Soon after, to avoid media attention, the agents hustled them into a transportation van. The group of 13 walked up to the agents. A wave of Central American adults with children and unaccompanied minors has overwhelmed U.S. Immigration and Customs detention centers. Immigration officials release some of them on their own recognizance after undergoing processing.