I think the premise the author makes is a bit ridiculous.
The only comparison is that people died. That's it.
What is under attack here, besides our people, is our entire way of life. The terrorists (read Osama's statement of why he attacked us) hate us and all we stand for. They hate our ablity to be free, to make choices, to not choose their way. They hate that because our freedom is so powerful, some of their own people choose it. The purposeful, direct attack to kill our people was carried out with the intent to frighten, to damage, and take away our freedom. This has no comparison to car accidents. Even before there was the automobile, people died in accidents. There always have been and always will be accidents.
Our response to terrorism is appropriate. The author of the article makes the riduculous conclusion that our reaction only makes things worse. How else could we respond? Of course we took action to prevent it happening again. This is only logical.
The fact is, they already hated us, and already attacked us. Our defending ourselves does in no way make it worse. If we weakly let it happen, let them control us, they would only do it again and again, because they hate our freedom and want to take it.
For some reason, authors like this tend to forget who is the problem here -- the terrorists. They are the ones to blame for this, no one else. They intentionally killed people out of murderous desire. I dare say that this is wrong. I say their idea of killing people and inspiring terror as a way of spreading their agenda is wrong. I also say that there is no reasoning with these kind of ruthless killers. They must be met with force, to defend the very freedom we have as a nation.