Barack Obama was in Wisconsin and Tennessee Thursday happy talking about "opportunity." He's for it, by the way. "It's good to be in Wisconsin," he told Wisconsin. Few hours later, "It's good to be in Nashville." In both places he talked about "opportunity"--the opportunity that comes with jobs and the opportunity that comes with education. As a word, "opportunity" polls well. Americans like the idea. Yet, these days whenever Obama has the opportunity to talk about his signature namesake "achievement," he rarely seizes the opportunity. It wasn't until two-thirds of the way through his 7,000-word State of the Union address...