This is too weird

Link. The flight voice recorder will eventually reveal the true story.

Contact with the Northwest Airlines plane was lost for an hour as it flew at 37,000ft, sparking hijack fears.

The crew said they had been distracted by a "heated discussion" but officials will check if they had fallen asleep. . .

The plane's cockpit voice recorder and flight data recorder have been taken from the plane and are being sent to the board's laboratory in Washington, DC.