I think there is a significant cost that is being left out of this equation: the cost of having whatever private data and biometrics TSA collects to give you Pre-Check on TSA's no doubt poorly secured computing infrastructure. With the level of incompetence the TSA has on display in public view, you have to imagine the level of incompetence behind closed doors is much greater. The Pre-Check database being breached is a question of WHEN, not IF. How much time and money will it cost you to fix your identity theft problem when the database is eventually breached? It's all fun and games until you look at the Equifax class action settlement. The majority of that money is set aside for people who incurred very large, verifiable losses. If you think TSA will accept responsibility like that, good luck.