Cheney's AEI speech was essentially a remix of the arguments that he had made in the run-up to the Iraq war: that if only ordinary American citizens had seen the top secret information he had access to, they would be even more alarmed than he was. And the Bush administration had only prudently taken every measure necessary to keep Americans safe.

Hiding behind a wall of classification has been a quintessential Cheney trope. But that wall just crumbled.

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