[Krsqk]

But Iraqi who blow up cars (and themselfs) to kill soldiers? is that terrorism? Or "Gorilla" tactics.

IMO, that's just part of war. It's the actions of a desperate foe, but it's still war. Today, we've seen some of the repercussions of fighting such a desperate enemy.

But to make the discussion a bit wider... Is blowing up the Pentagon terrorism? I mean, US forces blow up Iraqi ministry of (what not).... too. And killing of innocent people by mistake or in the proces is called collateral-damage, the same can be said in the 9-11 pentagon disaster. (with as collateral damage the passengers & bystanders)

As the attack on the Pentagon was not in time of war, it was unannounced, and it was done via hijacking civilian aircraft, I would call that terrorism. If war came here, I would expect the Pentagon to be shelled/bombed.

It's all a matter of perspective.

Indeed. Now, if we could only find an unbiased perspective. I know, there is no such thing.