The release on websites this week of what appears to be top - secret computer code that the National Security Agency has used to break into the networks of foreign governments and other espionage targets has caused
deep concern inside American
intelligence agencies, raising the question of whether America's own elite operatives have been hacked and their methods
revealed.
An engaging study of a beautiful but mysterious mind, which also
reveals the stressful nature of world - class chess tournaments and raises the
deep question of where
intelligence actually comes from.