The Pentagon's chief technologist says the Defense Department will conduct more hypersonics weapons tests in the coming years compared to the past decade in order to deliver initial capabilities in the early 2020s. In a roundtable with reporters at the Pentagon July 12, Under Secretary of Defense for Research and Engineering Mike Griffin said DOD will be "stepping up our testing pace" for hypersonics. "In the last 10 years, we've done a half a dozen, round number's a half a...