In a tour de force of investigative journalism that reads like a spy novel, award-winning Guardian reporter Luke Harding tells Snowden's astonishing story, from the day he left his glamorous girlfriend in Honolulu carrying a hard drive full of secrets to the weeks of his secret-spilling in Hong Kong, to his battle for asylum and his exile in Moscow. For the first time, Harding brings together the many sources and strands of the story, touching on...