I'll be honest, I was a little spooked at an event that I went to on November 15th.
I went to the Pats/Giants game at the Meadowlands, two days after the Paris attacks.
We stayed right near the Met-Life Stadium the night before and went into the city. On the way in, entering the Lincoln Tunnel, there had to be 20 guys in tactical gear and automatic weapons, same amount coming out of the Tunnel.
Times Square and the Port Authority terminal looked like armed camps. At Met-Life, the next day, same thing: tactical forces were there, bag checks, metal detectors, pat downs etc. I know that all that stuff is there for our protection, but man, it was pretty unsettling.
National TV game with two very high profile teams at 4:20 with the world watching, two days after the Paris attacks where a soccer stadium was attacked....the security people looked pretty edgy, which made a lot of folks that I spoke too in the stands, including me feel edgy too.
Had a great time, saw a great game (found a great bar where beer and drinks are cheap, the all you can eat tailgate costs $14 dollars and they provide a shuttle to and from the game including parking there for $30 per car) and once the game started all the negative thoughts drifted away.
But, yes, I am concerned about the safety of sports stadiums in general.