This is ridiculous. There are emergency brakes all over and people are spread between cars and cabins.

List of places where people are more exposed with no places to hide: - a TSA line at an airport (bonus because victims very unlikely to have their own fire arms) - a lecture hall at a university - a Walmart - a movie theatre - a Costco on a Saturday

> I'm surprised we don't see more of it, being honest. Only a matter of time.

You haven’t really thought this through. There isn’t anything special about the train here. The only thing that is special is how obsessed we are with airports.