PRESERVATION. Common Sense and Wonder discovers industrial policy, California style. I wonder if among the favored industries are the rice growers. That was the source of a trade flap some 20 years ago when Japanese Customs blocked the entry of a display that included some U.S. grown rice. (That's still a rather tender subject.) Some Midwestern industrial policy types were quick to complain about Japan exporting cars and protecting their rice farmers. The growing of rice in Northern California, however, using subsidized water from flood-control projects, is hard to distinguish from dumping.