Thanks, FLRAILMAN.
Here is another video that I happened to stumble across on YouTube, you might remember it? The title is "First Strike" and the entire film is on YouTube. I think it was a sales pitch for the MX missile program, something I had completely forgotten about in the years since. A very interesting reminder of nuclear deterrence strategy and its value. Here is a link to Part 1:
YouTube - First Strike (Part 1)
And for anybody who might be interested, here is a video taken as part of a missile silo museum tour, where EAM messages and verification procedures are discussed (among other things). The information is dated. However, the verification procedures may be essentially unchanged, as the EAM concept itself does not seemed to have changed much over the years...
http://www.youtube.com/watch?v=E2gZd...eature=related
Enjoy!