This episode has many similarities to the action classic
Die Hard (1988). It has a similar storyline of one man facing off against a group of terrorists. Similar situations like crawling around through vents and airshafts. And even lines of dialogue are the same. Kelsey says she is no terrorist.
Alan Rickman's Hans Gruber said the same. Both groups were financially motivated, rather than having any political agendas. And Kelsey and Gruber get one very similar line: Gruber: "Touching cowboy. Or should I call you Mr McClane? Officer John McClane of the New York Police Department." Kelsey: "Mr Mott. Or should I call you Lieutenant? Lieutenant Commander perhaps? Also, in Die Hard, Gruber posed as a hostage to fool McClane. Picard poses as the ship's barber to fool Kelsey.
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