They’re back on the hunt. Underwater sonar has been deployed in the search for flight QZ8501, and a Navy captain believes they may have located the tail portion of the plane. But in a shocking turn, Indonesia officials say the flight operated illegally, without a permit to fly Surabaya to Singapore on a Sunday. AirAsia flights on that route have been grounded. An airport operator and control tower officials have been suspended, as the investigation continues.