Eventually, we'll be able to carry nothing at all, then someone will board with a belly full of swallowed explosives, then we'll be x-rayed before boarding, or perhaps dissected.
Then perhaps some public figure will point out that this whole paranoid nightmare started because aircraft were used as a weapon, and that an on-board bomb isn't at all the same sort of threat. Or maybe some public figure will have the guts to say that the Trade Center attack merely upped the U.S. murder rate by 10%, to the level it was in 1995, and that this aircraft security crap is a grotesque, ineffective, and cowardly over-reaction. Words and ideas I offer here may be used freely and without attribution.