"In the Pale Moonlight" was frequently praised as one of the most dramatic episodes of Star Trek, and holds the title of being the darkest, and it's not surprising: In that episode, frustrated over the losses the Federation is taking in the Dominion war, Captain Sisko enlists Garak's help to persuade the Romulans to join the Federation against the Dominion. Sisko soon learns that, to save the Federation, he must abandon the values it stands for.
To such an end, he and Garak manufactures false evidence through dubious means to persuade the neutral Romulans that the Dominion plans to conquer the Romulan Empire after they are finished with the Federation, by presenting a Federation-hating Romulan senator with a Cardassian data rod showing a fabricated hologram meeting of the Dominion leadership discussing the plans. A lot is at stake, and chances of success are uncertain.
Spoiler
The episode is met with critical appraisal, but many fans derided that the what Sisko did was most antithetical to Gene Roddenberry's initial views of Starfleet, the Federation and 24th century Humanity.
But in many's view, mine included, what Sisko did was right: The Federation survived the war because of this one action. But ten years later, would this assertion still stand among the fans? Was what Sisko did ultimately right? Was it "A Huge Victory for the Good Guys!" or does ends not justify the means?