Do the Wikileaks documents prove that invading Iraq was a mistake?

Writer David Frum, and plenty of other neoconservatives and hawks, are citing the latest Wikileaks dump as corroboration that we ought to attack Iran. One of the common points I read today on Twitter is, hey, some Arab leaders want the U.S. to attack Iran, it’s not such a crazy idea.

But if we’re to scour these cables for foreign policy insights from Mid East leaders, how about these notes from a meeting with Egyptian President Hosni Mubarak: “Mubarak’s top concern for the stability of Iraq and the region is Iran. He believes that ‘as a result of the invasion of Iraq, Iran is spreading everywhere.’ ”