Another story about UFOs shutting down nuclear missile sites.
While you might think this indicates space alien involvement, I would argue just the opposite. My hypothesis is that this was the Pentagon testing new technologies to shut down the launch mechanism in the event of the Big One.
The idea is that if you can shut down your own nuke sites, penetrate the hardened electronics, evade security, etc., etc., then you should also be able to neutralize those of your adversaries.
I propose these were above-top-secret U.S. military platforms that operate using field propulsion.
I further propose the United States has had this propulsion technology, in one form or another, since the post-war period and that it has been evolving ever since. So now we see the most recent products, like the Tic Tac vehicle encountered by Navy pilots.