Petraeus set up a private account under a pseudonym and composed email messages but never sent them. Instead, they were saved in draft. His lover, Paula Broadwell, would log in under the same account, read the email and reply, all without sending anything. The traffic would not be sent across the networks through Google‘s data centers, making it nigh on impossible for the National Security Agency or any other electronic signals eavesdropping agency (such as Britain‘s elusive GCHQ) to ‚read‘ the traffic while it is in transit.