If i can remember, bombs in someway triggered by a person. Guns are equipped and effective only by manually using them. So why aren't the "shooters" blamed for but the guns are? Guns can't walk into a school with its legs and unload bullets.
Properly trained kids don't have accidents. I saw a video recently of an 11 year old girl in a shooting course competition. She shot like a professional sniper! The direction this world is going in, kids really do need gun training.