WASHINGTON, DC - MAY 19:  U.S. Attorney General Eric Holder speaks during a news conference at the Justice Department May 19, 2014 in Washington, DC. Swiss financial services holding company Credit Suisse AG has pleaded guilty to conspiracy to aid and assist U.S. taxpayers in filing false income tax returns and other documents with the IRS and has agreed to pay $2.6 billion in fine.  (Photo by Alex Wong/Getty Images)