No - launching a nuke results in a thermonuclear explosion detectable from space - not just keystrokes on a computer. Keystrokes on a computer can be hidden, those mechanisms can be by-passed - and no satellite from space is going to detect all that and alert us to the problem in the reliable and impartial way that would be necessary.
I see. I understand that a little more. I still disagree, however. There's a huge incentive for the government to keep those mechanisms working, and we'd all know it if they didn't. That's definitely not the case with the NSA. How will we know there isn't some secret backdoor?
