Depends on what part of the country I am in. We've mostly been in New York state, half of that in NYC. In the city, guns are banned, so it is highly unlikely something is going to happen. We moved up state, and while it's in the back of my mind, I would still say it's fairly low odds. The news makes it seem like it happens all the time everywhere. Remember, it's a huge country, so it seems more likely than it really is.