why violent crime rates in Israel are so low

from the CNN coverage of a recent tractor-based terrorist attack:

"The construction vehicle struck several other vehicles, including a No. 13 city bus, before an Israeli border policeman and a civilian shot and killed the driver, an Israeli government statement said."

everyone in Israel goes through mandatory military training for 2-3 years after high school and many of them choose to continue to carry guns everywhere for the rest of their lives.

that being said, i don't think it makes sense for crowds of untrained fools and crims to carry guns the way they do in the US. that seems to be the opposite of a good idea and a great way to increase senseless death rates. here, the only civilians who carry handguns on a day-to-day basis seem to be the ones who really shouldn't.

but, to carry guns for the maintenance of a "well regulated militia" makes a lot of sense.