The U.S. was absolutely right to invade and conquer Iraq in 2003. It suddenly has become a stock question to ask candidates for the Republican Presidential nomination a seemingly simple question: would you have invaded Iraq in 2003, knowing then what we know now? And most of them have fumbled badly. And the usual liberal suspects are jabbering away about how the war was based on a bunch of lies and utterly unjustified. Let me explain the proper and most sensible answer to this question. I have always been surprised that nobody seems to see the crucial importance of...