Seriously, if you are expecting a bazillion people to go into DC for an event, the best thing to do is to close the major traffic arteries into the City.  Force all of the traffic to take residential streets through Maryland!!

I like it!  Simple and brilliant.  The ensuing traffic jams will prevent any bad guys from getting into the City in the first place!!

If our leadership has to turn the capital into an armed camp and shut down hundreds of miles of arterial roads (b/c that is what the traffic jams will do) in order to appear in public, maybe we’ve gotten something wrong.