That means terrorists killing everyone on a plane (the same as everyone in the security queue) is an acceptable risk, as long as they don't crash the plane into even more people like at 9/11. So maybe we don't need airport security at all. Just have the air force ready to shoot down rogue commercial planes before they reach densely populated areas.

It happened in China. Muslim terrorists attacked hundreds of people waiting in a ticket hall. No need to go through security.