re: An example
John Kennedy was ready to show the pictures of the boats loaded with missiles en route to Cuba in 1962, to Charles de Gaulle. De Gaulle said: You don't have to, I believe you implicitely.
If George Bush wants to convince the world, from now on, that a country is indeed a threat, that faith won't be present anymore and Bush will have eventually to reveal sensitive information. Too sensitive to be shared, under normal circumstances.
But then, Bush can do it alone. Whith all the consequences.
Raoul