Sarah Palin was pounded by the media as a foreign-policy novice during last year's presidential campaign. But when it comes to the U.S. approach toward China, she has ideas worth listening to. "Twenty years ago, many believed that as China liberalized its economy, greater political freedom would naturally follow," the former Alaska governor and Republican nominee for the vice presidency told a Hong Kong audience yesterday. "Unfortunately that has not come to pass." Mrs. Palin sees China's authoritarian nature as a security concern for the U.S. and its allies in Asia-Pacific, and she has a point. North Korea, Burma and...