Immigration Secure Border
ADVANCE FOR USE MONDAY, FEB. 25, 2013 AND THEREAFTER - FILE - In this Oct. 14 1991 file photo, a group of illegal Mexican immigrants jump from a border fence to enter the United States, near Tijuana, Mexico. With new fencing and tougher enforcement the 1,954-mile border with Mexico is more difficult to breach than ever. (AP Photo/Lenny Ignelzi)
