In A.I. And Materials, U.S. Lags Behind China On Hypersonic Weapons

Watch VideoIt's an arms race based on research stemming back to the 1950s. Today, officials say hypersonic weapons are changing the future of warfare. Like ballistic missiles, hypersonic glide vehicles travel at more than five times the speed of sound, but unlike traditional missiles, they can be maneuvered to avoid getting shot...