Re: FFS 2 minutes to issue the warning!!!!!!
"if it takes 2 minutes to send the warning after receiving it, theres probably little point sending anything as the missile would be over peoples heads by the time they received the warning and tried to react to it."
Nonsense. An ICBM launch should be detected and identified within 5 minutes of launch, leaving roughly 15 to 30 minutes, depending on specific circumstances, to react.
Depressed trajectory close in SLBMs give much less time, but they are a special case, and would probably be held back for second strike use, given much higher survival chances.