Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

Q: In the movie Green Lantern, if fear is the very thing that turned the original Guardian into Parallax, and it cannot be conquered (The Guardians themselves say so)... why then does Sinestro decide to have The Guardians create a ring of fear? If the Lanterns fought Parallax with fear... would he not just feed off of the fear from the ring? Not to mention, wouldn't the fear take control of any Lantern that tries to master it within the yellow ring? (Example: Sinestro in the end credits.)

A: Why does Sinestro have The Guardians create a ring of fear?
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Q: In Harold & Muade, Harold gave her a small gift to maude:    Maude:This is the nicest present...that I've received in years.    Maude: (She threw the gift)    Maude: So I'll always know where it is.   What is the meaning of Maude words to Harold after throwing the gift?

A: What is the meaning of Maude words to Harold after throwing the gift?
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Q: In the episode Deutschland 93 from the second season of Narcos Tata meets Murphy in the plane from Germany to Colombia and says to him:    I hope you enjoyed Germany.   It seems that the most plausible explanation is that she recognised him as a DEA agent and noticed that he spent all his time in Germany in the airport, just like she did. However I didn't notice any sign of sarcasm in her voice, she seemed to be completely emotionless when saying this.  This leads to a second possibility that she simply remembered him from the flight to Germany and it was just some small talk. However if this is the case then I have really hard time understanding the purpose of adding this scene in the first place.  Is it one of these two options or something else? What is the actual meaning of this scene?

A:
Explanation of Tata's words
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