Not in the Liberty to say
When someone is "Not in the Liberty to say" It means that they are not in the Statue Of Liberty, so they cannot say anything about the situation being presented at the moment.
Person A: Hey, wheres the White House located?
Person B: I'm Not In The Liberty To Say...
Person A: ookaaay....
Person B: I'm Not In The Liberty To Say...
Person A: ookaaay....
I am not at liberty to say.
I do not have the freedom to divulge (make known) that information.
Jane: "Hey John, you were in that business meeting with Phil. Why did he lose his job?"
John: "Sorry, Jane; I am not at liberty to say."
John: "Sorry, Jane; I am not at liberty to say."