New York City Air Raid Drill

The video describes a mock air raid drill in a major city, highlighting the quick evacuation of Times Square and the role of air raid wardens in managing the situation. Volunteers play a crucial role in ensuring the drill's success, demonstrating the city's readiness for emergencies. The drill serves as an educational tool for the city's diverse population, emphasizing the importance of being prepared for any potential threats.

What does the phrase 'all clear' signify in the context of the drill?

How does the text describe the return to normalcy in Times Square after the drill?