Thompson and Ritchie were among the first to realize that hardware and compiler technology had become good enough that an entire operating system could be written in C and by 1978 the whole environment had been successfully ported to several machines of different types.
We're fighting an enemy that is far different than any we have got before. It's a nontraditional kind of war and I think we need to step back recalibrate how we go about protecting our borders and protecting our people and resetting our position in the world.