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Join Date: Sep 2006
Location: where the chile is hot
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I find it eminently believable that TSA assumes it has the right (whether or not it has chosen to exercise it) to examine a cellphone, and I certainly wouldn't be surprised to read of a 'rogue' screener doing just that.
It may come up in conjunction with a mobile boarding pass - if the BP itself is suspicious, a TDC may very well use that as justification to try to probe a little deeper.