AGANA, Guam: At least a dozen Americans were among the 254 passengers on board the Korean Air Flight 801 that went down on the tiny U.S. territory of Guam today. Helicopters from the local military bases have found at least 32 passengers so far. And as the search for survivors goes on, the search for the cause of the crash begins.
TIME's aviation expert Jerry Hannifin, who has covered two Korean Air crashes in the past, says investigators should consider the long working hours the airline imposes on crews. "Korean Air has a reputation for working their pilots harder than any American company is permitted to," says Hannifin.