A new Citigroup scandal is engulfing Robert Rubin and his former disciple Chuck Prince for their roles in an alleged Ponzi-style scheme that's now choking world banking.
Director Rubin and ousted CEO Prince - and their lieutenants over the past five years - are named in a federal lawsuit for an alleged complex cover-up of toxic securities that spread across the globe, wiping out trillions of dollars in their destructive paths.