U.S. Customs and Border Protection released around 2,000 illegal immigrants in southern Texas without giving them notices to show up at an immigration court proceeding in the future, said a Texas Democratic congressman. “There are some family units that have been returned to Mexico depending on the age of the kids that are with them,” Rep. Henry Cuellar (D-Texas) told CBS News on Sunday, adding that while some are returned, “over 2,000 of them have been released into the United States without a notice to appear.” “I emphasize—without a notice to appear at an immigration court,” he remarked. “They’re supposed to appear, show up, maybe in 60 days, report to an ICE office. This is unprecedented.” The releases came as Border Patrol facilities are quickly becoming overcrowded in the midst of a surge of people illegally entering the United States from Mexico. “That’s where the burden of the border communities …