This is essentially the same tactic she used from the start. Her her hope/belief was that because of the sensitive nature, no one would ever know that she was briefed. Now she’s just falling back further to a position that if full brief brief were released it would tell that she didn’t know, knowing the odds of that happening are low or nonexistent. I wouldn’t be surprised if she already has received assurances the full brief won’t be released.
So what happens when the CIA calls her bluff and dumps the minutes of the briefing in the WAPOs lap?