Local rancher Glenn Spencer stands by a vehicle barrier along the U.S.-Mexico border in Arizona. (Courtesy of American Border Patrol)
The killing of Arizona rancher Robert Krentz allegedly by an illegal immigrant has some critics pointing out that hundreds of miles of U.S.-Mexico border fencing isn't even high enough to stop a person on foot.
Of the 646 miles of barriers currently constructed along the 2,000-mile southern border of the United States, 300 miles are vehicle barriers, according to the Department of Homeland Security. That means they're meant to keep out cars and trucks, but aren't high enough to keep out people crossing the border illegally on foot.
Fencing in place just south of the Krentz family ranch in southeastern Arizona is exactly that kind of vehicle barrier, plus there's a sizable gap in the fence nearby.
Residents and officials say the security barrier is simply ineffective, and that the killing last month is shining a light on the problem...
