It is time to stop pretending that annoying protocols like these are all that stand between us and devastation. The most effective security innovation post-9/11 was also the simplest: the reinforcement of cockpit doors, which has made it virtually impossible to hijack an aircraft.
As things stand, the T.S.A. asks its officers to enforce rules of questionable utility while giving them remarkably little discretion; they’re more like hall monitors than intelligence personnel. That is a huge waste of human talent and a source of inefficiency.