This is actually a clever reference to a real FBI agent in a similar situation. His name is Lindley Deveccio, and Dwight Harris' line is actually a direct quote of Deveccio's. He's off the hook now, but he was in hot water for giving intel to some Colombos. But it goes without saying that Tony wasn't a counterpart of the man Deveccio aided.

And although I feel the war on Phil was rushed and only given a sliver of screentime, Agent Harris' plotline I found to be perfect.