Raytheon successfully test-fire hypersonic air-breathing weapon for USAF

Sounds like a further development of the X-43 that was tested long, long ago. How much can they really accomplish with only $200 million?
 
Both Russia and China already have operational hypersonic missiles. Russia even has a submarine launched one on their new attack subs and that is several steps harder to get right than an air launched missile.
 
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