Can anyone explain how a Boeing 777-200 can vanish without a trace?
How can it simply disappear without any indication of an in-flight emergency from the flight crew?
Does its disappearance and lack of any physical evidence suggest a catastrophic in-flight emergency which unfolded so rapidly that it caught the flight crew off guard and unable to send a distress signal?
Is it possible for someone other than the flight crew to disable its transponder or alter its radar signature to render it undetectable?