Still No Sign of Malaysian Jet Lost in 'Unprecedented Mystery'
Description:A massive air and sea search now in its third day has failed to find any confirmed trace of a Malaysia Airlines Jetliner. Some distraught families wait in Beijing for news of flight MH370 which vanished early on Saturday. About two-thirds of the 227 passengers and 12 crew on board the missing aircraft were Chinese. Other nationalities included Malaysians, Indonesians, and Australians. All are presumed dead. The wife of one New Zealander on board has not yet told her son.(1:53)