The “deeply concerning” test of a Chinese hypersonic missile shows that the United States has “a lot of work to do” on technology and policy. The August test, first reported in the Financial Times, featured a hypersonic glide vehicle that entered orbit. Hypersonic weapons descend at more than five times the speed of sound while retaining enough manoeuvrability to evade missile defenses designed for the more predictable paths of ICBMs. Read More Here