If you went by what the American media tends to call "terrorist", it's attacks by brown people from countries whose resources are of strategic value, or attacks

If you went by what the American media tends to call "terrorist", it's attacks by brown people from countries whose resources are of strategic value, or attacks by anyone with an anticapitalist agenda. (9/11, unabomber). Terminology these days is less about meaning and more about political pressure. I'm sure this qualifies under group 2.