Not to mention that short of RPGs, there's a very little they could tote in that could put a dent in the white house (yes, I kinda would like to see Kyle try to fire one while hiding on a crowd).  There's no telling what they've got beyond what's public, but we know there's at least a Platoon of USSS and at least as many Marines, with both Quantico and Ft Bragg a chopper ride away. We also know they've got M134s on the roof and there's a whole lot of kill zone between the gate and the front door. Nah. Nothing to worry about, but should be fun to watch.