Yes, those proposals we hear now and then that we should have to show a special magic ID at all times to prove we're Americans (lately from Rudy Giuliani of course) do have a pretty creepy subtext that should scare the crap out of Christian fundamentalists - at least the unfortunately large set of them who think, per Hal Lindsey, that the Book of Revelation is a prediction of the Antichrist taking over America and branding everyone with a 666.

But I've never really gotten why those people think it's such a big spooky deal that John wrote about people having to get an evil mark to do business, and then 1900 years later we have bar codes/credit cards/RFID/etc., so he must have been foreseeing our crazy new technology, so these must be the End Times now. Ever since Hammurabi there's been a tension between individualism and bureaucratic control; the "mark of the Beast" story would make sense to anyone who'd ever been hassled for documents or tribute by some obnoxious city official. You might as well get all excited that Nostradamus predicted "a leader will be elected, and he will not be very smart", or that the Mayans knew about masturbation (so they must've learned it from the UFOs).

Anyway, whether you believe in devils or not (I do), there have always been people whose aspirations for control over others seem to be based on our dreams of supernatural power, omniscience and invisible influence - and we all suspect deep down that we're not angels - so it should be no surprise that as our technology gets better, we look even more like the prophet's nightmare.