The Archimedes Effect by Tom Clancy’s Net Force
It is a new century, with new superpowers and a new breed of homeland security. Bypassing all safeguards, terrorists enter Fort Stephens - the newest high-tech Army base - and detonate a truck full of powerful explosives. Within hours, other bases are hit. Under attack, the Army calls in Net Force to help. Teaming up with Army intelligence and the National Guard, Net Force's own crack troops struggle to track down who is behind the deadly attacks. But they are countered at every move by a cunning opponent who thinks just like one of their own! This title offers a powerful examination of America's defense and intelligence systems of the future.
Good secondhand condition paperback.