Casualty Friday (DS9 S6E19)

When Captain Sisko gets interviewed by Errol Morris for a documentary about the Dominion War, it’s a chance for him to get everything off his chest. But when Sisko’s choice of conspiracy partners goes off-script, their plan will have explosive consequences. What’s the greatest distance ever measured? How evident is criminality on a hardness scale? How many vowels does it take to ruin a performance? It’s the episode that is fastidious about dental hygiene, but no other kind of hygiene.