I guess you have to be there to recognize the stupidity

OK you are carrying a bottle that can't be carried onto the plane as it might be explosive so lets pour it into the tub with all the rest of the stuff that might be explosive in the middle of a large crowd

The liquid is in a perfectly good container. Why empty it out?

This is not the first time Al Qaeda attempted this particular plot, why are there no contingency plans prepared that make sense?