A national holiday in Lake Wobegon is always gaudy and joyful. But what is going on between Clint Bunsen and Miss Liberty? Clint Bunsen is one of the old reliables in Lake Wobegona the treasurer of the Lutheran church and the auto mechanic who starts your car on below-zero mornings. For six years he has run the Fourth of July parade, turning what was once a line of pickup trucks and girls pushing baby carriages that hold their cats into an event of...