The race to develop an unstoppable and unbeatable weapon capable of defeating all the military defense systems in the world is getting much too close for comfort. Russia is expected to begin production soon of its 3M22 Zircon, a hypersonic missile that will travel 4,600 miles per hour — five times the speed of sound — and will have a range of 250 miles. That’s just three minutes and 15 seconds from launch to impact. Guided hypersonic missiles will be more accurate than traditional ballistic missiles and could conceivably be armed with nuclear warheads. And they’re coming, whether we like it or not.
http://www.foxnews.com/tech/2017/04/01/russia-develops-hypersonic-4600-mph-zircon-missile.html