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Shoppers line up outside a Best Buy department store waiting for it to be opened at midnight for Black Friday sales Thursday, Nov. 22, 2012, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Black Friday madness

Hordes of shoppers descended on stores across the country in the ritual

known as Black Friday after many major retailers moved their openings

into Thanksgiving night.

Across the country, up to 147 million people are expected to shop at some point this weekend.