School Shootings
Every law passed by any level of government is enforced by a gun. If you break the law, you are arrested. If you resist, the law enforcement agent will use an escalating level of force all the way up to shooting you in the head. We citizens need the same level of power against the goverment so that they clearly understand that hearding us down a socialistic or communistic path will result in an armed revolt. Otherwise, politicians will start passing laws that turn this country into a third world dictatorship or a ripe target for a strong government with a large military.