^ IIRC, the only ones who know about the entire thing with Vreenak were Sisko and Garak.
Correct. There is a novel that's set immediately after "In the Pale Moonlight" in which Sisko confesses his actions to Starfleet but discovers that they don't care because the Romulans entering the war will benefit the Federation far more than their continued absence would have.
--Sran