When I first read about the DCA restrictions almost three years ago, I figured the insanity would have ended long before now. Then, as now, airplanes (amazingly enough!) are capable of crashing into the White House, the Capitol, etc. without having taken off or planned to land at DCA.
It's incredible that the TSA still does not recognize the fact that airplanes are actually capable of moving significant distances without having to stop at the nearest airport every five minutes.
I predict that if there is another airplane-turned-missile attack on Washington, DC, it will be an international or long distance domestic flight headed nowhere near Washington but having a flight path within 100 miles or so.
The TSA and their apologists have done more damage to this country's average IQ than mercury could ever have hoped for.