U. S. Border Patrol agents seized six assault rifles, one rocket launcher, a grenade launcher, and three packages of what appeared to be C-4 explosives Tuesday near the Rio Grande. Agents patrolling the river near Fronton spotted a black bag in the brush. Inside, agents found the guns, rocket launcher, grenade launcher and explosives, along with a lower receiver for an assault rifle and 20 ammunition magazines. Too bad the Obama Administration can't blame law abiding gun shop owners in the United States for this one. Why? Because you cannot buy rocket and grenade launchers at their stores.