Originally Posted by
jib71
AFAIK the TSA allow containers - large thermos mugs etc.. - provided they are empty of liquids.
That should be true, but there's been plenty of reports of empty water bottles being confiscated because we might fill them up at air-side water coolers. And we all know that water cooler and washbasin water hasn't been screened in the pipes on its way into the airport. Dangerous stuff.