Joseph Stack's flight into the side of an Austin office building Thursday was a crime of vengeance by a man clearly angry at the Internal Revenue Service. But should it be called terrorism?
Judging from the rambling manifesto he left online, academics and terrorism experts said Friday that they doubt that
Stack's attack was more than a "cathartic outburst of violence." The plane crash echoed other attacks over the years by lone criminals with a violent anti-government bent, which one expert called a distinctly American phenomenon.