Chinese Shopping App Pinduoduo Sued in U.S. Ahead of I.P.O. As it prepares to list shares on the Nasdaq, the fast-growing online marketplace has been hit by a complaint that it allows sales of knockoff diapers. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:A Bright Green ‘Christmas Comet’ Will Fly the Closest to Earth in Centuries11 Die in India After Suspected Food Poisoning at Temple CeremonyHow McKinsey Has Helped Raise the Stature of Authoritarian GovernmentsClimate Negotiators Reach an Overtime Deal to Keep Paris Pact AliveA Chinese Tycoon Sought Power and Influence. Washington Responded.Amid Russia Tensions, Ukraine Moves Toward Separate Church