Border Patrol Mourns Slain Agent At Memorial Service

TUCSON, AZ - JANUARY 21: U.S. Border Patrol agents salute while standing vigil over the boots and helmet of slain comrade Brian Terry on January 21, 2011 in Tucson, Arizona. Agent Terry was killed during a December14 shootout with suspected bandits near the U.S.-Mexico Border. Thousands of Border Patrol agents and fellow law enforcement officers from across Arizona turned out for the memorial service held at Kino baseball stadium in Tucson. With U.S. agents tracking drug smugglers and illegal immigrants all along the border, the region is one of the most militarized areas of the United States. (Photo by John Moore/Getty Images)