Article Photos: Why must we buy? Black Friday's powerful pull 8/8

  Khang Nguyen, of Arlington, Texas eats his Thanksgiving dinner while waiting in line at a Best Buy store in Grapevine, Texas on Thursday, Nov. 22, 2012. Despite a surge of resistance as the sales drew near, with scolding editorials and protests by retail employees and reminders of frantic tramplings past, Black Friday's grip on America may be stronger than ever. (AP Photo/Star-Telegram/Joyce Marshall)