Re: Cheap space access = Cheap ICBMs?
Publish away. The rocket propulsion technology for "Big Dumb Boosters" has been in open literature for years.
Creating a working rocket engine is not the hard part of building an ICBM (although it is no piece of cake). Guidance, tracking, and targeting are the hard parts. Incidentally, they are also the hard parts of getting a vehicle that can get into orbit.