I know we all like to pontificate on here but Israelis are tired of being terrified as well. Air horns blowing all day long with people laying out on the ground in fear of 19th century technology is still fear. Far fewer deaths and injuries but that's due to their advanced technology. The fear is still real.
A knife, when wielded proficiently, can still kill easily. And it's one of if not the first real weapon we've ever used.