I'll bet that Hanson wishes he could retract this one.
Hanson writes extremely sloppy history. I spent a happy afternoon with two other history buffs playing a round of "For the People," a strategy-level Civil War game, and spent most of the time further ripping the logic holes and inaccurate factuals in his books. It's a lot of fun if one is into such things.
Although Rumsfeld is not supremely effective at his job, at least he's a veteran, and not another lawyer. I'll give him that much.