There are no rules
A few days before his 75th birthday, I took CIA spymaster Clair George to lunch at Martin’s Tavern in Georgetown.
Over bacon-cheeseburgers, I excitedly told him about a new intelligence principle I’d learned with reference to liaison partnerships called the Third Party Rule.
Essentially, it means you don’t share any secret you’ve learned from one intelligence service with another intelligence service.
Clair took off his glasses, rubbed his eyes, and looked at me with amusement. “In this business,” he said. “There are no rules.”