Um. Excuse me. Let me help you. There is no ‘bulletproof’ backpack or body armor

Um. Excuse me. Let me help you. There is no ‘bulletproof’ backpack or body armor. Rifle bullets go thru body armor, walls, steel, concrete, trees. There is nothing that a series of bullets will not penetrate. The only solution is armed men with zero tolerance, and return to exhaustive exercise, and aggressive discipline including corporal punishment in the schools.