[Ben Mugged]

If it turns out that a bomb took out the electrical systems, your implication that an inherent computer malfunction (circa HAL) is going to look very silly.

Actually it looks silly anyway.....

[cynwoody]

If it turns out that a bomb took out the electrical systems

It would be an unusual bomb that just took out the electrical systems and left the plane to limp along for fifteen minutes without a radio report.

If you'd like to see what bombs do to airplanes, have a look at these tests, in which small amounts of semtex were detonated in airplanes pressurized as if at altitude but actually sitting on a runway in front of cameras.

http://www.liveleak.com/view?i=5ef_1183275834

How many messages would the computer in the falling fragment manage to send back to Air France before splashing down?