Was Air France Flight Act of Terrorism?

Drudge has a link to this article about a bomb threat to an Air France flight from Argentina on May 27. It's difficult at this point to know what caused the crash, but we do know that transocean flights have long been a terrorist target.

We have this meteorological analysis that suggests turbulence or even lightning could have caused the airplane to lose power, but nothing is definitive and there are still a lot of questions about whether the backup power supplies would have been destroyed, which they seem to have been.

Unfortunately, hopes are dim for finding the black box.