That's my main takeaway from reading this.
As for the particular question of whether Joe Stack was a "terrorist," I don't think the answer is clearly yes or clearly no, but the more important point is that if he had been an Arab immigrant who flew a plane into an INS building because he was pissed off at his dealings with them, no one would hesitate to call him a terrorist and the situations would be pretty analogous except for one little thing.
