Military intelligence uses radars.

The video discusses the fascination with alien invasions and details the US Air Force's investigation of over 12,000 UFO sightings between 1947 and 1969. Despite some unexplained reports, the Air Force assured the public in 1952 that the threat of an alien invasion was very remote.

What time period is associated with the fascination of alien invasions?

• 1950 to 1970

• 1947 to 1969

• 1970 to 1990

• 1960 to 1980

How many UFO sightings did the US Air Force investigate?

• Over 5,000

• Over 8,000

• Over 10,000

• Over 12,000

What was a consequence of the UFO investigations by the US Air Force?

• Discovery of alien life

• Development of new aircraft technology

• Rumors of alien invasions

• Increased funding for space exploration

In what year did the Air Force assure the public about the remote threat of invasion?

• 1952

• 1947

• 1960

• 1969

What was the Air Force's stance on the threat of alien invasion?

• It was too remote

• It was highly likely

• It was imminent

• It was already happening