Today a man in Israel tried to kill a number of people by mashing a bulldozer into them. He was able to kill three people before somebody used a gun to stop the treath.
This is Israel, where if not by a police officer, one of the many citizens who go through their everyday life carrying fully automatic submachineguns could have stopped this attacker.
This stands in stark contrast with similar events that took place in Japan:
Armed with a far less dangerous vehicle, a Japanese man drove a truck into an entire crowd of people, hopped out and went on stabbing people, killing seven. That's more than twice the amount of people killed by the guy in the bulldozer!
The guy was out on the street, running around! One need not even clim onto a bulldozer or anything similar to stop him! Point, click, lives saved.