SAN CLEMENTE, Calif. - When Michael Winsten and his wife, Cheryl, moved here four years ago, they expected their young children eventually would attend the high school down the hill, about a 3 1/2-mile bike ride from their home. Since then, relentless growth in this Orange County community has forced a school district building boom, and the Winstens' five children will have take a bus to a new school farther away. The Winstens say the real reason for moving their children is to ensure there are enough white students at the new school. They are suing Capistrano Unified School District...