The town of Springsburg, Wisconsin gave a big job to one of its littlest citizens in last November’s elections, choosing 10-year-old Nathan Brooks as its mayor. Brooks, a fifth-grader, may be young but he’s wasted no time proving he means business. On January 31, shortly after taking office, he fired all of the town’s union sanitation workers. “This community stands at the brink of fiscal ruin thanks to unsustainable pension commitments,” the peppy Nathan said from behind his tiny lectern at his first press conference. “If Springsburg’s sanitation workers really want to take out the trash, they should start with…