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Eat, shop, click: Another kind of Black Friday

Eat, shop, click: Another kind of Black Friday

How great is technology? It can cure diseases, send humans into space and ensure that we never have to set foot in a Wal-Mart or Best Buy again if we don't want to.

On Black Friday, the day we flock to big box stores to save money on flat-screen TVs, that can be a matter of public safety. Every year, headlines pile up describing rage-filled altercations in parking lots and checkout lines. People have gotten trampled, stabbed, shot and pepper-sprayed. According to the website Black Friday Death Count, there have been seven deaths and 90 injuries in the last nine years.

Conventional wisdom has it that "Black Friday" refers to the day when retailers finally turn a...