Fallout fan goes to Nellis Air Force Base's Air Show - Las-New 2

Nellis Air Force Base is usually closed to the public, with the exception of the Air Show. During this time, attendees are taken to the base on busses and they must stay within a perimeter. What happens there and how close can I leave a snow globe next to the barracks? Watch Las-New 2: Man's Search For Fallout for free: https://www.youtube.com/watch?v=JTpO7jnkiSE