Army Special Forces. He has made of habit of embedding with them, and he chronicles one of their biggest misadventures in his latest book, "No Way Out: A Story of Valor in the Mountains of Afghanistan" (Berkley Hardcover/2012), co-written with journalist Mitch Weiss. It tells the story of a group of Green Berets sent into a treacherous area of Afghanistan to capture a terrorist leader. Instead, the troops walked into an ambush.