Or a nuclear tipped supersonic missile like the Mach 3 Sunburn (https://en.wikipedia.org/wiki/P-270_Moskit https://en.wikipedia.org/wiki/P-270_Moskit), or back

Or a nuclear tipped supersonic missile like the Mach 3 Sunburn (https://en.wikipedia.org/wiki/P-270_Moskit https://en.wikipedia.org/wiki/P-270_Moskit), or back in the '80s I heard of the concept of using SLBMs in a "depressed trajectory" mode, where they didn't really get up high but used their rocket energy to travel horizontally really really fast. Putting these sorts of defenses in D.C. is in part about avoiding a "decapitation" attack.