Here are some tips on how one might accidentally(wink) protect one's privacy with the rise of RFID technology being used in government-mandated identification like passports.
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The Mylar bag, once sent by California's Sun Pass program to customers worried about privacy, wlll block the RF tag from being read-sort of like how lead blocks Supermans X-ray vision from seeing through Louis Lane's blouse. Tin foil will serve pretty