US attorney General Eric Holder during a news conference at the justice department yesterday in Washington. Mr Holder announced he has ordered an investigation into whether criminal activity took place at the Internal Revenue Service. Photograph: Doug Mills/The New York Times

Not since the covert surveillance exposed during the Watergate scandal of the 1970s has such a rash of revelations about spying and seemingly p(...)

More than 10,000 private messages sent between users of Bloomberg’s financial terminals have leaked. Photograph: Reuters/Brendan McDermid

More than 10,000 private messages sent between users of Bloomberg’s financial terminals have leaked online, undermining the company’s attempts (...)