For those about to opt-out: a TSA scanning machine cheat-sheet Xeni Jardin, boingboing.net As Cory notes in this pre-Thanksgiving trav­el day post, some trav­el­ers in Amer­i­ca will be opt­ing out of scan­ning machines in TSA lines for pri­va­cy con­cerns, or for health and safe­ty rea­sons. I want­ed to post a reminder, how­ev­er, tha… RT @xeni:…

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