Clancy...
Is a joke with regards to his facts on military hardware.
So far as Red October goes, he's not even close. He's way too in love with gimics and neat toys and doesn't even come close to how things really are. But he writes a good book.
Fatal Shore was written by Robert Hughes, an Aussie who went abroad for about 20 years, then realized no one had written a good history of Oz. So he wrote one, and in doing so wrote what I think is the standard all other national histories should be written to.
Celticrose, about Dreamcatcher, I agree, but the parts with the retarded guy should have been left out and it would have been a much better book.
Tron