Aerial shots of security helicopters squadron flying over London...

The video discusses observing an aircraft silhouette, identifying it as an American aircraft, and describes its features, including a police helicopter aspect.

What does the term 'silhouette' refer to in the context of the text?

Why might the speaker believe they cannot get any closer?

What is meant by 'transit of American aircraft' in the text?

What role does the 'police out flyer' play according to the text?

How does the mention of a 'police helicopter' contribute to the overall message?