Mexican Army personnel, left, patrol the Rio Grande by Boquillas del Carmen, Mexico, as Border Patrol agents stand guard while Customs and Border Protection Commissioner Alan Bersin visits the former international crossing at Boquillas in Big Bend National Park, Thursday, Jan. 6, 2011. The crossing was closed in May 2002 in reaction to the Sept. 11 attacks. Photo: JERRY LARA, San Antonio Express-News / glara@express-news.net
{}