I’m listening to his book, The Borrowed World, now. The beginning of the book is terrifying how easy it would be to take out refineries, dams, power generation station with the terrorists in two man cells. They cause damage across the entire US in a very small budget. The rest of the book is about the narrator and two coworkers trying to get home while his family tries to survive at home with some preparations.
Locker 9, and Mad Mick also give some idea of the scope of the attacks. I finished through Endarkened, Borrowed World 11. Mad Mick (ive read thru 6) goes after the ring leaders.