Build. The. Fence. Now.

From the Washington Times, U.S. border patrol agents are outgunned by Mexican drug gangs and the Mexican government shows little ability to rein them in. From the story:

"Last month, Mexican military officials in Matamoros, just south of Brownsville, Texas, stopped a tractor-trailer containing weapons and ammunition, along with a pickup truck fitted with armor and bulletproof glass.
"The weapons included 18 M-16 assault rifles, one equipped with an M-203 40mm grenade launcher. Also seized were several M-4 carbines, 17 handguns of various calibers, 200 magazines for different weapons, 8,000 rounds of ammunition, assault vests and other military accessories. "

M-16s? Those are fully automatic and at least $2,000 a pop - if you can find them. That's not the stuff used by a drug gang...it's stuff used by someone who's trying to build their own private army.
Build. The. Border. Fence. Now.