[PvK]

If you read the article, it's not just that it was a simple code that someone might guess, but that they also told everyone at the facility what it was, because they didn't ever want to have it holding back their ability to fire.

The page follows with silo security analyses which many gamers (especially, smart tactical roleplayers such as I've often played RPG's with) would be able to devise simple and cheap plans which could overcome the security. Apparently we've been lucky so far that there have not been more determined and capable madmen around, trying. And that's just the nuclear weapons system in the USA...

PvK