Agency's 'vengeful librarians' pore over posts to get a 'real-time peek' at global hotspots
Our rapidly expanding drone empire can kill foreigners or Americans with impunity
Despair in Washington at ‘disconnect’ between US and Pakistan over the fight to stamp out al-Qaeda
WikiLeaks editor says
social media users are just helping US intelligence
'Killing was part of the job' said former agent described as 'a retired James Bond'