Head of UK's National Security Agency warns U.S. Tech Companies Are Shielding Terrorist Activity

In his first week in office, Robert Hannigan, the new head of the Government Communications Headquarters (GCHQ)—the U.K.’s equivalent to the National Security Agency—is complaining that the large U.S. technology companies are becoming “the command-and-control networks of choice for terrorists.” In a Financial Times op-ed published Monday, Hannigan accuses tech companies of being “in denial” about…