Book excerpt: From Las Vegas, Mount Charleston looks like little more than a giant gravel mound in the distance, towering 11,916 feet above the neon lights of the entertainment capital of the world. Only a fraction of the nearly 40 million people who visit this 24-hour city ever bother to look west and skyward toward the mountain.The truth is that this very mountain is a silent memorial to fourteen men who died there in a plane crash on November 17, 1955; men who were part of the secret development of the U-2 spy plane, integral to America's success in the Cold War. The United States government was so determined to keep their mission a secret that it lied to the families of the victims, sealed the crash records and even rigged the site with explosives in an effort to obliterate any remnants of their existence.If it weren't for the curiosity of one visitor, the national secret that haunted the mountainside might never have been revealed. In these pages, finally, the story is told.