c mw jjork a' m co August 10, 2012 Standard Chartered Case Casts a Chill Over Banks By JESSICA SILVER-GREENBERG Money laundering accusations leveled against a British bank by New York's top banking regulator are causing global banks to worry that their New York operations could make them public targets for processing transactions already deemed legal by federal regulators, according to federal authorities with knowledge of the concerns. Benjamin M. Lawsky, who leads the New York Department of…