Defense Secretary Pete Hegseth's time at the helm of the largest executive department has been anything but smooth sailing. Plagued with leaks and buffeted by scandals, this "infidel" Ahab has become anxious, ornery and isolated as President Donald Trump's second term enters its third month. A new report from the Wall Street Journal shows that Hegseth is starting to see elusive leakers in his nightmares. According to the outlet, Hegseth threatened top officials with lie-detector tests to root out media sources on recent embarrassing stories. Shortly after word broke last month that the Pentagon might brief Elon Musk on secret war plans in China, Hegseth exploded at the then-chairman of the Joint Chiefs, Admiral Christopher Grady. "I'll hook you up to a f**king polygraph!" Hegseth reportedly yelled at Grady, per two unnamed sources who spoke with the outlet.