Luke Harding: How Edward Snowden went from loyal NSA contractor to whistleblower

He was politically conservative, a gun owner, a geek – and the man behind the biggest intelligence leak in history. In this exclusive extract from his new book, Luke Harding looks at Edward Snowden's journey from patriot to America's most wanted: The Snowden Files: The Inside Story of the World's Most Wanted Man Luke Harding  The Guardian, Friday More