FILE - This April 19, 2011 file photo shows a member of the National Guard checking on his colleague inside a Border Patrol Skybox near the Hidalgo International Bridge in Hidalgo, Texa

 

              FILE - This April 19, 2011 file photo shows a member of the National Guard checking on his colleague inside a Border Patrol Skybox near the Hidalgo International Bridge in Hidalgo, Texa
FILE - This April 19, 2011 file photo shows a member of the National Guard checking on his colleague inside a Border Patrol Skybox near the Hidalgo International Bridge in Hidalgo, Texas. Illegal immigration has slowed in recent years, with the Border Patrol recently recording the fewest arrests in almost 40 years. But many people worry that the Mexican border, the most popular crossing point for newly arriving illegal immigrants, still isn’t secure more than a decade after the Sept. 11, 2001, terrorist attacks. (AP Photo/Delcia Lopez, File)