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United States Law Code defines terrorism as premeditated, politically motivated violence perpetrated against noncombatant targets by sub-national groups or clandestine agents. Violence is behavior involving physical force intended to hurt, damage or kill someone or something.
This one qualifies.
This one does not. It was premeditated and politically motivated, but did not involve a group or clandestine agent. And since the intent was to insult, not do lasting harm or damage, I don’t think it rises anywhere near the level of “violence” that terrorism demands.
The court qualified it as an “assault”, but the light sentence clearly suggests they agreed with me that it was more about shoe-throwing than shoe-hitting. The most this jerk could’ve done was leave a bruise and, since he threw in the open, face on, one could easily expect Bush’s reflexes to at least get his hands up in time to protect his eyes and nose.