Citigroup must face South Korean bank's lawsuit over failed CDO
April 22, 2015 at 11:38 AM EDT
NEW YORK, April 22 (Reuters) - A U.S. appeals court on Wednesday revived a lawsuit in which South Korea's Woori Bank accused Citigroup Inc of defrauding it into buying risky mortgage securities that Citigroup was betting against, prior to the financial crisis.