>>Air France received a bomb threat for a flight from Buenos Aires to Paris 5 days before a flight from Rio to Paris went missing over the Atlantic Ocean.
>
>That plane was blown up. I would bet money on it. Loss of cabin pressure and electrical system failure at the same time? No communication from the pilots? Way too much coincidence for a plane with so many layers of redundancy.

OTOH the IT systems in the airbus have proved too clever in the past.

http://feww.wordpress.com/2009/06/02/airbus-catastrophic-failure-a-fatal-design-flaw/