A Border Patrol agent walks on the U.S. side of a fence separating Tijuana, Mexico, background, and San Diego.
A Border Patrol agent walks on the U.S. side of a fence separating Tijuana, Mexico, background, and San Diego. Gregory Bull Associated Press file
A Border Patrol agent walks on the U.S. side of a fence separating Tijuana, Mexico, background, and San Diego. Gregory Bull Associated Press file