Based on the context and the answer, generate a question. 

Context: This time it flapped all over the place , like a swinging chain ! Myth busted!And just today it occurred to me : The crackpots claim the flag was blown around by wind . But they also claim it was filmed on a soundstage . WHERE , THEN , WOULD THE WIND BE COMING FROM , if they were filming inside a BUILDING ?

Answer:

The moon landing



What may I be researching about ?