Carl Hoffman is traveling for The Lunatic Express, to be published by Broadway Books in 2009. He is a contributing editor at National Geographic Traveler and Wired magazines, and his stories about travel, adventure and technology – and often the nexus between them – also appear frequently in Outside, National Geographic Adventure, Men’s Journal and Popular Mechanics. His first book, Hunting Warbirds: The Obsessive Quest for the Lost Aircraft of World War II, was published by Ballantine Books in 2001.