Well, I asked over at Screeners Central why they don't just give people a list of shoes that are no-removal shoes. The screener's answer was: "If we list certain shoes as no-removal shoes then those are the ones that the terrorists will put stuff into." Yet the TSA claims there is an objective standard of which shoes are profiled and which are not, so there is a de facto no-removal list. The terrorists have all the time and chances in the world to figure out what shoes are profiled. Even though passengers are experiencing inconsistency, the shoe carnival is in fact airport-specific and very predictable. Thus, by the screener's argument above, we're due for a massive shoe attack...