Historical point of interest - the concept for RFG was originated by Jerry Pournelle when he was a Cold Warrior involved in strategic weaponry; he has an Operations Research background. He has been a noted computer columnist and science fiction writer for the last few decades, and was a space adviser to Reagan and Gingrich. He is a really interesting guy. I support him and his web site at about the same level I support Free Republic (and I’m a monthly). He is worth it.
http://en.wikipedia.org/wiki/Kinetic_bombardment
http://jerrypournelle.com/chaosmanor/
I meant to ping you to my post above as well.
Have to check that out. Thanks