Hypersonic Missiles Are Unstoppable. And They’re Starting a New Global Arms Race. The new weapons — which could travel at more than 15 times the speed of sound with terrifying accuracy — threaten to change the nature of warfare. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Interior Department Launches Investigation of Potential Ethics Violations Among StaffMeteor shower 2019 calendar: When is the next meteor shower over the UK and USA?NASA InSight SURPRISE: Mars lander detects first MARSQUAKEPlanet Nine SHOCK: Hunt is on to locate 'faint' Planet 9 - 'There's lot of sky to observeDr. David Hamburg, Leader in Conflict Resolution, Dies at 93NASA Breakthrough: Probe discovers GROUNDBREAKING sound from Mars - ‘We’ve waited months'