WASHINGTON -- After nearly three months behind bars, New York Times reporter Judith Miller was released from a federal prison Thursday after agreeing to testify in the investigation into the disclosure of the identity of a covert CIA officer, two people familiar with the case said. Miller left the federal detention center in Alexandria, Va., after reaching an agreement with Special Counsel Patrick Fitzgerald. Legal sources said she would appear before a grand jury investigating the case Friday morning. The sources spoke on condition of anonymity because of the secrecy of the grand jury proceedings. The sources said Miller agreed...