This is an excellent question. At the end of the day, the TSA exists as it does because the population is fearful of dying in an airplane explosion (even though

This is an excellent question. At the end of the day, the TSA exists as it does because the population is fearful of dying in an airplane explosion (even though these tactics don't much help prevent that), and there's no political cover whatsoever for a politician that endorses scaling back security theater. So whatever the practical next step is, it needs to start by solving that problem. We need a public declaration by the population that we're willing to take the risk and won't punish politicians for changing the TSA.