Nor do they tag and code every person on film.

BBC: The Boston Marathon bomber: Caught on film?

When the bag is checked in, the tag is applied, and the airline's computer systems associate the tag's code with the passenger's electronic ticket.

ECONOMIST: REPORTS

At the front desk of the Laventura, a disdainful blond woman provided her with a handful of devices for entry into her new life: apartment and mailbox keys, garage-gate remote, car tag, a code for accessing inner sanctums bearing keypads.

NEWYORKER: Shauntrelle

Placing a wine glass with a tag similar to a bar code on the table, for example, could call up details about the wine and its vineyard.

WSJ: The Shape of Computers to Come?

They could click on a link, scan a QR Code, or even scan an NFC tag containing a link to the malicious website.

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