WASHINGTON—The National Security Agency fired a high level intelligence official just days after he publicly urged Congress to pass stronger protections for federal whistleblowers facing retaliation.Russ Tice, 43, who was once nominated for an award by the agency for his intelligence work on Iraq, was informed Tuesday that his security clearances had been permanently revoked and that he could no longer work at the secretive intelligence agency known for its eavesdropping and code-breaking capabilities.Tice has been at the odds with the agency since he reported suspicions that a female co-worker at the Defense Intelligence Agency (DIA), was a spy for...