When most people think of the U.S. Secret Service, they picture agents in dark suits guarding the president. But beyond the sunglasses and earpieces lies a lesser-known, but equally vital mandate: ...

Members of Congress questioned the head of the Secret Service on Capitol Hill yesterday. Julia Pierson tried to explain how an intruder with a knife made it all the way to the entrance of the Green ...

Physicians, Secret Service agents and White House reporters have criticized President Donald Trump's decision to leave Walter Reed Medical Center so he could wave to supporters outside the hospital in ...