Donald Rumsfeld died last week — and it’s just so easy, isn’t it? It’s so convenient to dance on the grave of the man who helped bring about the disastrous Iraq war. For Rumsfeld, the old dictum, de mortuis nihil nisi bonum, seems to have been discarded almost from the start. The obituaries, mostly in left-leaning publications like the Atlantic and the Daily Beast, have been downright vicious. Rumsfeld was George W. Bush’s first defense secretary who, alongside Dick Cheney, pushed hard for deposing Saddam Hussein after 9/11. Because of this, he’s been labeled a war criminal. H...