Police man the front of a Walmart store amid heightened Black Friday security in Paramount, California on November 23, 2012 as shoppers arrive and Walmart employees and their supoorters protested nearby. The US retail giant Walmart admitted on November 27 some of its products were made at the Bangladesh garment factory that burnt down at the weekend killing 110 workers, as anger grows over lax safety standards. The fire broke out at the ground-floor warehouse of the multi-storey Tazreen Fashions factory 30 kilometres (18 miles) north of Dhaka on the night of November 24, trapping hundreds of workers on the upper upper floors, police said.  AFP PHOTO / Frederic J. BROWN        (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)