I read this book in about five days. It had a bit of a slow start, but rapidly drew me in. It is a real page-turner. It was interesting to read a thriller written before the advent of cell phones and the internet. However, there was one glaring plot hole that consistently bothered me. While I know that in times of international crisis where nuclear war is a real possibility, the President, Vice President and others would be separated to hopefully ensure a succession of powers in the event of the President's demise, in this story, the Vice President was not even a minor character. Other than that, I enjoyed the story very much.