Navy SEAL Sniper Chris Kyle signs a copy of his new book “American Sniper” for a Camp Pendleton sailor at the base’s Country Store, Jan. 13. “American Sniper” is Kyle's first person account of how he went from a Texas cowboy to one of the most distinguished snipers in the military. The book also offers a view of modern warfare and one of the most in-depth looks into the secret world of special operations.