It is disconcerting to realize that the reassessment of classification policy described by Mr. Litt was not prompted by the diligent exercise of congressional oversight or by judicial review or by ordinary advocacy. Rather it was explicitly inspired by the Snowden leaks, which Mr. Litt described as “criminal.” The upshot is that leaks emerge as a uniquely powerful tool for shaping intelligence classification policy, while conventional checks and balances appear all but irrelevant by comparison.

Moreover, the purpose of the newfound push for greater transparency seems to be instrumental, not principled. In other words, it is driven by tactical considerations, not by statutory requirements or any other objective norm.

“I strongly believe that the best way to prevent the damage that leakers can cause is by increased transparency on our part,” Mr. Litt said. “Transparency can both lessen the incentive for disaffected employees to disclose our activities improperly, and provide the public appropriate context to evaluate leaks when they occur.”

That implies that what is needed is only as much transparency as it takes to achieve these imprecise and transient goals. It is a unilateral move that can be unilaterally reversed.