We've long believed the U.S. government classifies too many documents as secret, and now we know for sure. How else to explain why Sunday's release of some 92,000 previously confidential documents reveals so little that we didn't already know about the war in Afghanistan? This document dump will only matter if it becomes an excuse for more of America's political class to turn against a war they once supported. One news item we could find in the orchestrated rollout on WikiLeaks.org and three newspapers is that the Taliban have heat-seeking anti-aircraft missiles, perhaps even Stingers of the sort we gave the Afghan rebels to fight the Soviets in the 1980s. But even if they do have Stingers, the U.S. continues to dominate the skies and few U.S. aircraft have been shot down. Another, more important, disclosure is how closely Iran has been working with the Taliban, as well as with al Qaeda and other Sunni extremists. This makes logical sense, given Iran's support for terrorists in Iraq and its general desire to chase America from the region. But the evidence should discredit those who think Tehran can be made peaceable by diplomatic entreaties. Among the many nonscoops in the documents, we learn that war is hell, especially for infantry, and that sometimes troops make mistakes; that drone aircraft sometimes crash; that a forward U.S. base near the Pakistan border was ill-positioned to defend against Taliban attacks and had to be abandoned; and that many Afghan officials are corrupt and that Afghan troops flee often under fire. Any newspaper reader knew as much. Far from being the Pentagon Papers redux, the larger truth is how closely the ground-eye view in these documents reinforces what U.S. officials were long saying: that the war wasn't going well, the Taliban were making gains, and a new and invigorated strategy was needed to combat them. Both the Bush and Obama Administrations made the same diagnosis in recent years, neither one kept it secret, and this year Mr. Obama followed through with an increase in troops levels and a renewed counterinsurgency.