Rigged currency markets - U.S. Justice Department to begin investigation 10/13/2013 - 00:00 Currency markets are massively rigged.Bloomberg reports today:The U.S. Justice Department has opened a criminal investigation of possible manipulation of the $5.3 trillion-a-day foreign exchange market, a person familiar with the matter said.The Federal Bureau of Investigation, which is also looking into alleged rigging of interest rates associated with the London interbank offered rate, or Libor, is in the early stages of its currency market probe, said the person, who asked not to be identified because the inquiry is confidential.