In a recent post (click here) I researched the possibility of a US secret Corona spy program satellite photographic re-entry module being the cause of the Westall incident. My research rejected this possibility.
After the post was published, a girl friend of mine in Perth continued to look for any other secret US driven operations that would cause the Australian government to cover up such an operation, such that a record would never appear in official Australian government files.
The most extreme case that she could think of was the accidental dropping of a US nuclear bomb from a USAF aircraft. This would certainly have been immediately swept under the official carpet. However, when she raised this possibility with me I thought that this would have been an impossible scenario, that it could never have happened, until I was reading a part of Annie Jacobs' book "Area 51."
"On the morning of January 17 1966, a real-life dirty bomb crisis occurred over Palomares, Spain. A Strategic Air Command bomber flying with four armed hydrogen bombs - with yields between 70 kilotons and 1.45 megatons - collided midair with a refueling tanker over the Spanish countryside." (p.297.) Note the years was 1966, the same year as Westall.
"But when the two bombs without parachutes hit the earth, their explosive charges detonated, breaking open the nuclear cores. Nuclear material was released at Palomares in the form of aerosol sized plutonium which then spread out across 650 acres of Spanish farmland." (p.298.)
"The nuclear accidents did not stop there. Two years and four days later there was another airplane crash involving a Strategic Air Command Bomber and four nuclear bombs. On January 21, 1968, an uncontrollable fire started on board a B-52G bomber during a secret mission over Greenland...In November of 2008, a BBC News investigation found that the Pentagon ultimately abandoned that fourth nuclear weapon after it became lost." (p.300.)
Is is at all conceivable that something along these lines happened at Westall? Were there USAF aircraft in Australia in April 1966? Were there any US nuclear weapons in Australia in 1966? Did any of the Westall witnesses recall seeing military personnel using Geiger counters?
How to start researching this scenario?