The big mystery behind Ethiopian Airline Investigation

Officials of the Lebanese Civil Aviation Authority on the first day of the accident conducted an interview with an army officer who said he saw the plane explode into a ball of fire and plunge into the sea.
And when American and the French investigators came to Beirut the Lebanese officials are reported to have told them that they had this interview on record. But when later they were asked for the recording of the interview, they failed to provide it. The witness also could not be available. Read more.