In the age of the internet there is no reason why not all government communication should be published - ideally in real time. All contact with lobbyists for example would be brought out into the open, as would be internal discussions within or between government departments. The only exception should be items relating to national security or ongoing legal proceedings. Complaints about excessive volume of documentation miss the point - computer memory is very patient, cheap and requires very little maintenance. And no one has to read the files if they are of no interest to him.