John Podhoretz makes a good point about where the anger at the TSA is coming from:
The message of the election was: No, stop, enough. The federal government has gotten too big, is doing too much, and may be acting in ways that are impinging on our freedoms. Through a coincidence unfortunate for the Obama administration's political future, it just so happens that the same month in which the public was explaining this to the political class, the terror threat rose, and the TSA instituted tougher measures to counter it. And where do people outside Washington encounter the federal government directly? At the airport.
I wouldn't put it quite that way, but I suspect he's onto something about what's making Americans angry.
P.S. If large numbers of Americans demand pat-downs on Wednesday, should we call it, "The evasion of the body scanners?"