To be fair, airports were already screening for that pre-9/11. The tech has gotten a lot better which… should make things faster and easier to pinpoint and loc

To be fair, airports were already screening for that pre-9/11. The tech has gotten a lot better which… should make things faster and easier to pinpoint and locate problematic objects instead of doing random checks? I think long lines are mainly due to growth of travel and aviation (more planes, bigger planes, and jamming more people in the same plane) without corresponding growth in airport security infra. If there were lineups at the shops in the airport, they’d build new and bigger shops in no time.