A senior CIA official has died in an apparent suicide this week from injuries sustained after jumping off a building in northern Virginia, according to sources close to the CIA. Sen. Diane Feinstein (D., Calif.), chairman of the Senate Select Committee on Intelligence, has said the CIA has blocked efforts by the committee to investigate harsh interrogation of terrorists. Committee staff members working at a CIA facility in Northern Virginia to investigate agency interrogation practices also have charged that the CIA covertly searched the agency’s computers that were being used in the investigation. The agency subsequently reported that several Senate...