Hong Kong marks Christmas Eve with mall protests and clashes

Chaos broke out in an upscale Hong Kong mall on Tuesday night as riot police clashed with pro-democracy protesters who were marking Christmas Eve with a series of flashmob rallies.Riot police used pepper spray and batons to beat back angry crowds after plainclothes officers made arrests inside Harbour City, a luxury mall in Tsim Sha Tsui, one of the city's busiest shopping districts.Hong Kong's many malls have become regular protest venues as the city convulses from more than six months of incre