Not many is still not none, which is the order of magnitide for lives saved by the TSA. While driving is safe, it's also a lot more dangerous than flying. So

Not many is still not none, which is the order of magnitide for lives saved by the TSA. While driving is safe, it's also a lot more dangerous than flying. So pushing people towards driving miles instead of flying iles also should have been a source of mortality in your analysis-- too bad that one is harder to assess. Since for many trips driving is often not a reasonable alternative there probably wouldn't be that many-- but again, it wouldn't take much to overcome any arguable benefit of the TSA. And, of course, the enormous resources that go into the TSA could be instead funneled into actual lifesaving activities.