The President is the ultimate arbiter of classification, as Gen. Hayden points out, so there was nothing done here which exceeds Presidential authority. It is the judgment of this particular POTUS which has been called into serious question. In pandering to the ACLU and to international critics, Obama has committed a grievous blow to the spirit of his responsibilities as Commander In Chief during an on-going war. He has sacrificed a measure of our security for the sake of some chimera of goodwill, whose fruits it is difficult to imagine being worth the potential cost.
It was a foolish and reckless move, and I hope most fervently that we manage to dodge the bullets which it invites.
UPDATE: Here's Rich Lowry from NRO, bringing this matter of torture into much-needed perspective:
Rightly considered, the memos should be a source of pride. They represent a nation of laws struggling to defend itself against a savage, lawless enemy while adhering to its legal commitments and norms. Most societies throughout human history wouldn’t have bothered.Indeed.
UPDATE 2: And for those in the "'torture' doesn't work anyway" camp, here's Marc Thiessen in the WaPo.