Russia and China are ahead of US in hypersonic missile technology. Here’s why

Russia's MiG-31 supersonic interceptor jets carrying hypersonic Kinzhal (Dagger) missiles fly over Red Square during the Victory Day military parade in Moscow on May 9, 2018. - Russia marks the 73rd anniversary of the Soviet Union's victory over Nazi Germany in World War Two. (Photo by Yuri KADOBNOV / AFP) (Photo credit should read YURI KADOBNOV/AFP via Getty Images)

Russia and China are ahead of US in hypersonic missile technology. Here's why

Erin Burnett Out Front

Russia and China are ahead of the US in developing and testing hypersonic missile technology, especially when it comes to building wind tunnels. CNN's Kristin Fisher has the details.

03:03 - Source: CNN

Russia-Ukraine conflict 16 videos

Russia's MiG-31 supersonic interceptor jets carrying hypersonic Kinzhal (Dagger) missiles fly over Red Square during the Victory Day military parade in Moscow on May 9, 2018. - Russia marks the 73rd anniversary of the Soviet Union's victory over Nazi Germany in World War Two. (Photo by Yuri KADOBNOV / AFP) (Photo credit should read YURI KADOBNOV/AFP via Getty Images)

Russia and China are ahead of US in hypersonic missile technology. Here's why

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