Operation Dark Heart: Spycraft and Special Ops on the Frontlines of Afghanistan -- and The Path to Victory

Operation Dark Heart tells the story of what really went on—and what went wrong—in Afghanistan. Lt. Col. Anthony Shaffer led a black-ops team on the forefront of the military efforts to block the Taliban's resurgence.

For a moment he saw us winning the war. Then the military brass got involved. He witnessed firsthand the tipping point, when what seemed like certain victory turned into failure.

This wasn't the first time he had seen bureaucracy stand in the way of national security. He had par...