Mr. Assange is misunderstood in the media and among digirati as an advocate of transparency. Instead, this battening down of the information hatches by the U.S. is precisely his goal. The reason he launched WikiLeaks is not that he’s a whistleblower—there’s no wrongdoing inherent in diplomatic cables—but because he hopes to hobble the U.S., which according to his underreported philosophy can best be done if officials lose access to a free flow of information…

His central plan is that leaks will restrict the flow of information among officials—”conspirators” in his view—making government less effective. Or, as Mr. Assange puts it, “We can marginalize a conspiracy’s ability to act by decreasing total conspiratorial power until it is no longer able to understand, and hence respond effectively to its environment. . . . An authoritarian conspiracy that cannot think efficiently cannot act to preserve itself.”