I wish airlines had a choice to use the TSA or not, because then we could vote with our wallets. But no, we are being forced to be groped by imbeciles who think that patting down frightened five year olds is worth it. While the finer points of your analysis are correct, the most compelling argument against the TSA lies outside the scope of your analysis. The idea that you can have absolute safety is a farce. Whenever we want more safety, we have to ask ourselves at what cost it's worth that safety. The TSA is a political response to an anomaly, and somewhere along the line we forgot that we are giving up our freedom by chasing ghosts.