
One more thing. Remember my previous post about "Urgent Tactical Strike", where the military wants to be able to hit any target anywhere on the earth within 20 minutes with "smart bomb" precision? Well it looks like they're one step closer now; the experimental scramjet engine for the X-51 successfully fired on the ground, and it achieved a steady-state cooling temperature (which is important because at that speed it should be melting itself to pieces). This is important because this option, unlike putting conventional heads on current SLBMs, doesn't scare every other nuclear power on the planet so much. I don't quite understand why; this thing should be able to carry nuclear weapons just as easily as a ballistic missile. Oh well.
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