Behind closed doors

Bush in the Vatican.
Start of briefing. Cameras!

Ratzinger: So how was the G8 meeting?
Bush: Quite well, really. It was a success.
Ratzinger: The dialogue with Putin was also good?
Bush: (apparently eyeing photographers and reporters who were about to be escorted from the room) Umm... I'll tell you in a minute....

End of official briefing. The cameras are stopped.
The two leaders retreat together behind closed door.

So what did Vader /sorry, Bush/ tell his master behind that door?
And what can we expect next?