Originally Posted by
iluv2fly
At Pre-Check, they do random hand swabbing frequently. (I have had it four out of the last six times).
What I do is wipe off my hands with alcohol before I leave for the airport. I was told to do that by a TSA supervisor.
Would one of the alcohol based hand sanitizers work as well? Or do they have some of the organic compounds like lotion that would trigger a false positive.