A Yuma-area dairy family has taken its fight with the federal government over a milk price-fixing law that it believes singles it out to the U.S. Supreme Court. In a petition filed Friday, Yuma dairy owners Hein and Ellen Hettinga are asking the U.S. Supreme Court to hear key issues in their lawsuit challenging a federal law that forces the Hettingas to sell milk to consumers at a higher price than they want to charge. The Milk Regulatory Equity Act of 2005, which the Hettingas say targeted them specifically, requires independent producer-handlers to join a dairy cooperative or pay federal...