[slabertooch]

Grenade launchers? Grenade launchers?! WTF does the FBI need grenade launchers for?!

Probably for less than lethal purposes I would hope. smoke, gas, etc.

I bet they leave the frags behind unless they are going on a fishing trip to Waco with their buddies from the ATF.

Good chance they were only 37mm though, not sure if they use the same 40mm tubes that the military uses.