Hypersonic Missiles - What Do They Mean?

When you talk about sort of the higher end hypersonic missiles, how do they differ from what we've known as traditional missiles? What do they mean? Functional differences. We just put out a report o a couple of weeks ago i call complex air defense, which is specifically on hyprasonic defense. It can't be done. We're just going to have to adapt to it. I actually looked at the report, and amazingly, i could understand some of it. The space shuttle was a hypersonic glider. That's how it came back in the x 15 of old was hypersonic aircraft. So it's been around for forever.