Modern Day Missiles

Intercontinental Ballistic Missiles from the Cold War are getting a 21st Century update. The update has to do with the missile's delivery system. According to Business Insider, "Missiles that can fly at hypersonic speeds could render global missile defenses useless, and, if left unchecked, could become the next global arms race amongst the nations of the world." Right now world leaders are pursuing hypersonic cruise missiles and hypersonic glide vehicles.