Re: Great CGI show, I must admit - but how credible is all that?
"If you're in your final approach and the warhead has separated, then that's a different matter. Assuming they're planning for warhead separation of course."
If you're already hypersonic, do you even need a warhead? A solid lump of something might be enough, or maybe a box of large(ish) ball bearing that opens us before impact for a shot gun effect. I wonder what the effect of a mach 10+ 1" steel ball bearing would be? Or an expanding cloud of them?