The 52 passengers rescued from an icebound ship in Antarctica might now become the rescuers. The Chinese ship that sent a helicopter to rescue the passengers on board the Russian ship MV Akademik Shokalskiy is now stuck in Antarctic ice and might need a rescue of its own, according to the Australian Maritime Safety Authority. An Australian icebreaker carrying the 52 passengers is waiting in open water to see if it has to go back to help the Chinese icebreaker Snow Dragon.