Originally Posted by
Ian W
1. Security will need to be ultra tight because the hypersonic aircraft cannot be caught/intercepted if hijacked. Not sure that is an issue - but one to think about.
What will stop hypersonic fighters intercepting them?
I don't think the argument that they can get to an attack location "quicker" really holds water. The aircraft that crashed into the world trade centre didn't give 20 minutes notice of their intention.