Yahoo scanning order unlikely to be made public: sources

By Joseph Menn, Dustin Volz and Mark Hosenball WASHINGTON (Reuters) - Obama administration officials briefed key congressional staffers last week about a secret court order to Yahoo that prompted it to search all users’ incoming emails for a still undisclosed digital signature, but they remain reluctant to discuss the unusual case with a broader audience. The groups also pressed Clapper, who has pledged to be more transparent in the wake of controversial spying revelations, to explain how