The continuation of the war on water has absolutely nothing to do with credible threats or the ability of screeners to detect them. It has everything to do with the DHS/TSA saving face and not admitting that they overreacted. Liquids were not banned after the Bojinka Plot in 1994 actually killed a passenger with a liquid bomb because we were in a pre-paranoia pre-TSA era. And even if you believe the London liquid plot was credible, there was never any credible threat to use liquid explosives on domestic USA flights.

Kip Hawley, whom I usually despise, even tried to give the next adminstration an escape route by saying the ban could be lifted within a year, but the Obama appointees didn't take the bait.

Several other jurisdiction are distancing themselves from absurd overreactive DHS policy. I believe the EU has a codified deadline to lift the liquids restrictions, and that they are already history in much of the non-US air travel world.

BTW, August 10th is the 6th anniversary of this absurd, supposedly temporary policy.