Wild Fire (John Corey #4) by Nelson DeMille

From #1 New York Times bestselling author Nelson DeMille comes a suspenseful new novel featuring Detective John Corey and an all-too-plausible conspiracy to detonate a nuclear bomb in two major American cities.

Welcome to the Custer Hill Club--an informal men's club set in a luxurious Adirondack hunting lodge whose members include some of America's most powerful business leaders, military men, and government officials.
 Ostensibly, the club is a place to gather with old friends, hunt, eat, drink, and talk off-the-record about war, life, death, sex and politics.

But one Fall weekend, the Executive Board of the Custer Hill Club gathers to talk about the tragedy of 9/11 and what America must do to retaliate. Their plan is finalized and set into motion.

That same weekend, a member of the Federal Anti-Terrorist Task Force is reported missing. His body is soon discovered in the woods near the Custer Hill Club's game reserve.