This is old news and they know how to fix it, have you not been listening: ban guns, ammo, explosives, knives, spoons, backpacks, marbles (they can be used in sling shots), sling shots, rocks, bricks, candelabras (Col. Mustard could use it), rocks, pebbles, water (people could drown), oxygen (it makes things flammable), fire..... I am sure there is more but this should be a good start.
Now we are all more safe, don't you feel better!
Oh and Mother-in-Laws... They are really dangerous. Done. Next we start working on any privacy anybody is still foolish enough to think they still have a right to!