temporary camp in Del Rio has grown with staggering speed in recent days during a massive surge in migration that has overwhelmed the authorities. DEL RIO, Texas — Thousands of migrants were crowded under a bridge outside the border community of Del Rio on Thursday, part of a massive surge in migration across the Rio Grande this week that has overwhelmed the authorities and caused significant delays in processing the arrivals. The U.S. Border Patrol said that more than 9,000 migrants, mostly from Haiti, were being held in a temporary staging area under the Del Rio International Bridge as agents...