Capitol Hill police are investigating emailed threats to Rep. Trey Gowdy, the South Carolina congressman tabbed to head a special panel to probe the White House’s response to the Benghazi terrorist attacks. Politico reporters and journalists at other news outlets say they’ve received at least two emails that threaten harm to Mr. Gowdy due directly to his leading role on the panel. Capitol Police refused to comment on the actual threats, except to say that “an active, open investigation” has been launched, Politico reported.