The unidentified craft were sending some type of specific signal that could penetrate concrete, and triple shielded cables going to each of the missiles separately. Salas believes the UFO occupants were sending a simple message-- 'get rid of your nuclear weapons.
In his book Faded Giant Robert Salas asks ... does the public have a right to be informed about the possible existence of UFOs and the suspicious events that coincide with their supposed presence? How would access to such knowledge affect our society? What responsibility does the government have in learning about UFOs in an effort to protect society? These are the types of questions that authors Robert Salas and James Klotz attempt to answer in Faded Giant. They explore this incidence of unidentified aerial phenomena and its proximity to the Malmstrom Air Force Base (AFB), which is near Great Falls, Montana, and the unexplainable shutdown of nearly twenty nuclear missiles that occurred.