We didn't go from being armed to outlawing and restricting the use and ownership of arms for no reason you know. Even though sensational press and tabloids are ever so happy to yell out how everything has gone bad and how it all used to be much better, reality is very different. Compared to 100 years ago, crime rates are probably extremely low.
Nobody would notice because of the noise. What's the point of this question anyway? Events like this (like big sports games) are extremely well monitored and controlled for a reason. Over here, all entrants not only need to pass a metal detector but they are frisked as well. On top of that there is always a large police force present to prevent riots.BTW is ANYONE going to answer my question "what would happen if one of these guys walked into a monster truck rally and started shooting?"
THAT is the best way to handle it.