A new focus on hypersonic glider weapons, after a reportedly successful Chinese test, is helping drive an arms race that is eclipsing hopes of a return to disarmament by the world’s major powers. The Chinese test on 27 July, first reported by the Financial Times, involved putting into orbit a nuclear-capable glider, travelling at five times the speed of sound, which then re-entered the atmosphere and performed some turns on its way to a target.The test suggested that China… – The Guardian Photo: Xinhua News Agency Handout