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A comment on A crater formed in Siberia's permafrost is growing. Parent comment

Re:A crater formed in Siberia's permafrost is growing by flukus on Tuesday February 28, 2017 @10:18PM (#13760727)
If your target is the city/population. If it's the president then a surprise attack would be better, although I doubt a nuke carrying enemy sub would be able to get that close.
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Re:A crater formed in Siberia's permafrost is growing by Retric on Wednesday March 01, 2017 @02:26PM (#13767309)
Peak speed for an ICBM is in the ballpark of 6-7km/s (any faster and the payload would go orbital), and it takes about 10 minutes to accelerate to that speed. That's New York to Moscow in around 20 minutes.

So, a sub 1,000 miles from shore can hit you faster than you can get out of the blast range when you include a modest detection > reaction delay unless your sitting in an airport. It's vaguely possible you could get into a bunker in that time period, but unless you sleep in a bunker even that's not really viable.

However, by setting up things to respond in the event of a nuclear attack it does not really matter if you take out DC / Moscow as the other subs can respond anyway.

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