A Border Patrol agent works in front of a color-coded chart at a detention center Wednesday, Jan. 11, 2012, in Imperial Beach, Calif. The Border Patrol is moving to end its revolving-door policy of turning migrants around to Mexico without any punishment in what amounted to an invitation to immediately try their luck again. (AP Photo/Gregory Bull)
January 17, 2012 5:57:58 AM PST
By ELLIOT SPAGAT
SAN DIEGO - January 17, 2012 --
The U.S. Border Patrol is moving to halt a revolving-door policy of sending migrants back to Mexico without any punishment.