Stories from the world of business and work. Heathrow and BAA have had a tough few years. Strike threats, security alerts and bad weather all disrupted passengers and services. Critics are calling for the break up of BAA. But BAA is fighting back. Its state-of-the-art Terminal 5 is opening on time and on budget and there may be a third runway. Libby Potter asks what will become of Heathrow amidst rumours that Gatwick will be sold off.