[FreedomPoster]

Intertial navigation, how does it work!?

https://en.wikipedia.org/wiki/Inertial_navigation_system

[Myrddin]

An ICBM will have coverage on the 10x rate, encrypted GPS channel. The MIRVs get released with a very good fix before gliding to the target. I'm not really concerned that they won't hit the intended target. I'm more concerned that we would allow conditions to deteriorate to the point that a launch becomes necessary.