The mess hall of the Bellerophon has a buffet and a galley instead of a wall of replicators and a captain's private mess. These were modifications made by Neelix to Voyager and should not appear on an Intrepid class vessel in the Alpha Quadrant.
At the end of season 6's "Inquisition", when Bashir explains Section 31 to Captain Sisko, Sisko instructs Bashir that next time he encounters Sloan, he should accept his proposition of joining Section 31. However, in this episode, Bashir is reluctant at best to assist Sloan, and even Sisko doesn't seem as determined that Bashir should join Section 31, having to ask Admiral Ross' opinion. Did they forget about their earlier conversation?
Sloan: The Federation needs men like you, doctor. Men of conscience. Men of principle. Men who can sleep at night. You're also the reason Section 31 exists - someone has to protect men like you from a universe that doesn't share your sense of right and wrong.
Sloan: You're a man who loves secrets. Medical. Personal. Fictional. I am a man of secrets.
Sloan: I say that because when the war's over, the following will happen in short order: the Dominion will be forced back to the Gamma Quadrant. The Cardassian Empire will be occupied. The Klingon Empire will spend the next ten years recovering from the war and won't pose a major threat to anyone. That leaves two powers to vie for control of the quadrant - the Federation and the Romulans.
Bashir: This war isn't even over and you're already planning for the next one.
Sloan: Well put. I hope your report is equally succinct.
Bashir: You're taking quite a risk. I could have a security team here
in thirty seconds.
Sloan: I suspect you'd be unable to communicate with anyone outside this room.
Bashir: I could scream.
Garak: I must tell you it's a bit disappointing to hear you mouthing the usual platitudes about peace and friendship regarding an implacable foe like the Romulans. But, I live in hope that someday you'll see the universe as it truly is, rather than as you wish it to be.
Bashir: I shall endeavor to become more cynical with each passing day. To look gift horses in the mouth and find clouds in every silver lining.
Garak: If only you meant it.
Garak: Ah, Romulus. How well I remember it. You will find the predominant color to be gray. The buildings. The clothes. The people. Did you know that the Romulan heart itself is gray? It's true. And entirely appropriate for such an unimaginative race.
Bashir: You don't see anything wrong with what happened, do you?
Ross: I don't like it, but I've spent the last year and a half of my life ordering young men and women to die. I like that even less!
Bashir: That's a glib answer, and a cheap way, to avoid the fact that you've tramped on the very thing that those young men and women are out there trying to protect. Does that not mean anything to you?!!
Ross: Inter Arma, Enim Silent Leges.
Bashir: In times of war the law falls silent. Cicero. So is that what we have become? A 24th century Rome, driven by nothing other than the certainty that Caesar can do no wrong?!
Ross: As far as I'm concerned, this conversation never happened. You're dismissed.
Adrienne Barbeau (Senator Cretak) and John Fleck (Koval) would later become regulars on Carnivàle together. They play Ruthie and Gecko respectively.
This is the first episode on Deep Space Nine that we get to see an Intrepid-class starship. Therefore, all scenes aboard the Bellerophon were filmed on the set of Voyager.
First appearance of the new Starfleet dress uniforms. They had been held back until after the premiere of Star Trek: Insurrection in the theaters.
Alexander Siddig is the only regular to feature prominently in this episode. Armin Shimerman (Quark) and Cirroc Lofton (Jake) do not appear at all.
Neral, the Romulan Proconsul last seen in the Next Generation episode "Unification, Part II" has now been elevated to the position of Praetor, leader of the Romulan government. In "Unification, Part II", Neral was played by Norman Large, while the character in this episode is played by Hal Landon Jr., who looks nothing like Large. The Decipher Star Trek playing card for this character joked about this, by suggesting Neral "has not aged well under the burden of leadership".
Sloan bears a striking resemblance to Colonel Flagg in M*A*S*H. They are both with Intelligence, causing a lot of grief to the regular cast, and able to disappear without a trace.
The conference Doctor Bashir attends is held on the starship USS Bellerophon. Bellerophon was also the name of the colony ship whose disappearance provided the backstory for the 1956 film Forbidden Planet. The name comes from ancient Greek religion - it means "dart-bearer". He was the hero who slew the Chimera, thus making this an obscure reference to episode bearing the same name, which aired two weeks before this one.
This episode ends with the Admiral and Bashir talking about Rome. Romulus was the mythical founder of the city of Rome, so it is fitting that this episode takes place on Romulus.
Romulus' architecture in the matte painting is also very Roman in style: the pillars, the large Colosseum like building.
Inter Arma Enim Silent Leges
The title of this episode in Latin literally translates as "When confronted with arms, the law becomes mute".
This is a quote by Cicero, the philosopher and political theorist of the late Roman Republic. He was also active in attempting to be a go-between for the triumvirs Pompey, Crassus, and Caesar. When the Civil War between Pompey and Caesar began in 49 BC, Cicero reluctantly sided with the Republican Pompey, but soon chose to go into exile rather than fight a losing battle against Caesar. He was pardoned by Caesar after his victory, and Cicero later tried to make Caesar's heir Octavian his protege in his conflict with Mark Antony. The philosopher died in 43 BC when Octavian allowed Antony to kill him in exchange for the death of one of his own enemies in Antony's camp.