@IBMJunkman, 2 Apr 2015 at 09:17:
A good deal of what used to be human operations has been automated, but the two man and two officer rules did work for a number of years.
https://en.wikipedia.org/wiki/Two-man_rule
https://en.wikipedia.org/wiki/Permissive_Action_Link
Like electronic countermeasures and electronic counter-countermeasures and their extensions, or cryptography and code-breaking, you never design an infallible system. You just keep working at it.
And as so many commenters have noted, knee-jerk reactions aren't the most productive method.