Out of all the juicy pieces of information a whistleblower could leak, Stewart's informant came on the show to share CIA employees' inane complaints about the cafeteria food at headquarters in Langley, Va.
"Apparently, when our intelligence professionals aren't sending drones after terrorists, they're sending bitchy emails about their lunch," Stewart quipped.
Once the informant began to do dramatic readings of the emails, which were obtained through a records request, his voice immediately gave his identity away.
“Why doesn’t the Burger King facility here offer the same ‘dollar menu’ as the outside facilities?” one email read. “Why can’t there be nicer food handlers?”
“I mean what is the deal with that?” the whistleblower added off-script.
If the jig wasn't already up by then, it was really spoiled when a second silhouette popped into the frame that looked suspiciously like Kramer from "Seinfeld."
"I think we may have slightly compromised your cover sir," Stewart said.
“What cover?” Jerry Seinfeld said. “I’m covered. Cover yourself!”
Watch below, courtesy of Comedy Central: