The article is a argumentative tone/mood. Evidence of this is when the author wrote "NASA’s space program is worth preserving at any cost."That shows how they personally believe that it is worth preserving and that they’re trying to prove their opinion is valid. Also when the author says"It is impossible to list all the benefits of a thriving space program." The author has a strong opinion that they believe which makes it argumentative.
I would assess this info in the context of the work expected from them. Are they building websites for you? While the site appearance does reflect somewhat on their image, it may have little or nothing to do with their value otherwise.
I think there is a shift at “...assured him”. From reading the beginning, you would think the person is under arrest, “stay where you are”. But, the sentence goes on to say that the police officer ‘assured’ him that. He could’ve been in danger, so the officer was telling him that help was on the way, just stay put.
I presume this is from Lewis Carol's nonsense poem "Jabberwocky," when he uses the phrases "vorpal" it means deadly. A deadly sword.
