Any arguments - and one knows that there were some - took place behind closed doors, while a united front was presented to the world.
You say that "all discussions of any import take place behind closed doors."
During this time, such services as there were took place behind locked doors.
The trial took place behind closed doors and the defendant was only allowed one witness.
The time when decisions could be taken behind closed doors has passed.
It is no longer appropriate for the Council to keep taking most of its decisions behind closed doors.
Much took place behind closed doors, but we meet in public.
This has all taken place in secret, behind closed doors.
It is understood that the meeting took place behind closed doors.
All discussions of any import take place behind closed doors.