They did hit a low lying building.
The Pentagon. I have no way of knowing absolutely the thought process that lead to picking targets. I hope I never come to think in such ways. But I do think it's reasonably clear that their targets had more to do with symbolism that death tolls. Of course, YMMV.
bcnu,
Mikem
The soul and substance of what customarily ranks as patriotism is moral cowardice and always has been...We have thrown away the most valuable asset we had-- the individual's right to oppose both flag and country when he (just he, by himself) believed them to be in the wrong. We have thrown it away; and with it all that was really respectable about that grotesque and laughable word, Patriotism.
- Mark Twain, "Monarchical and Republican Patriotism"