Chicago-based UAL Corp is asking a federal judge for a an injunction against four of its pilots and their union, claiming that they are abusing their sick leave by refusing to fly extra hours. The injunction request charges the pilots and the Air Line Pilots Association with encouraging a "sick-out," a violation of the Railway Labor Act, which also applies to airlines. The airline says that it canceled 329 flights from July 19 to 27, stranding 36,000 travelers, since they had no pilots. more ›