Pfc. Manning's massive leak of low-level classified documents (assuming he is the responsible party, as alleged) was an act of inspired immaturity. He does not have the education or experience to make any sense of the trove of documents, let alone the time to actually read more than a fraction of them, but must have acted either on the assumption "classified equates to bad" or simply an impulse to get away with something.<p>No adversary is likely to learn anything they didn't already know (and apparently the press has not either), although it potentially gives large well-funded adversaries like Russia and China a great source for drawing case-study training materials.<p>The damage is to our own intelligence and diplomatic internal affairs, both in scrambling to do damage control and changing procedures.<p>The material is of great interest to arm chair intelligence analysts; plenty of blogging material.