I work near the Super Bowl Village that was set up in downtown San Francisco. TSA presence unobtrusive, just saw one TSA jacket at the BART station using up oxygen and doing nothing in particular. Some ATF agents with dogs roaming around, lots of SWAT teams patrolling out in glorified golf carts from the Fed building. Those actually concerned me most, were the SWATs: all that young testosterone with AR-15s. If anything went down, I would not want to be anywhere near those guys.