Mills has a knack for making what I call "fantasy solutions" to big problems seem feasible. RISING PHOENIX is a prime example. Talk about cutting back on drug use!
Will check out Caleb Carr; never read any of his.
Yeah, I like Nelson DeMille, too. One of my favorites, in fact, though his endings sometimes irk me pretty severely. I also love Douglas Preston and Lincoln Child, both together and as solo authors. James Rollins spins enjoyable, fantastic tales. James Patterson's work is hit-or-miss for me. I like Grisham well enough to have read all of them. (I have a collection of his signed first editions that's about 80% complete.) I used to love Clancy but find his later stuff unreadable; it's obvious he's burnt out.
With DeMille, it's all about the ride and never the destination. He ranks with Stephen King as a poor writer of climaxes, but his character/story development is always entertaining.