Since you are bringing this up in connection with 9/11, I take it you're refering to the muslim world here...It breeds people like this because of the total lack of civilization and good government there.
While I agree that most of these countries have screwed up gouvernements, the "total lack of civilisation" is as far from the truth as it can get. Unless you're refering to specificly to Afghanistan or Iraq.
And maybe I should mention here that least of the gouvernements were screwed up by themselfes, but by outside influence.
However, Military intervention sometimes IS needed, I don't deny this. I spent too much time in Bosnia to not aknowledge this fact (and an AMEN to all them saying the UN is joke... the only times they messed up as good as they did in Bosnia was Somalia and right now in Darfur...). Apart from this, western europeans still have to thank America for the great work they did in Germany during and after the second world war.
Still, too enthusiastic military intervention leads to tyrany. It's a thin line between keeping order and opression, even a thinner one on a global scale than on a national one.
Another misconception is that 9/11 happened because of hatred towards america. If 9/11 would have been a strike against america, it would not have been the only one. To understand this you have to know quite a bit of Muslim history, Theology and Ideology, but Bin Ladins Videostatement made it unmistakebly clear that attacking America was NOT the major purpouse of 9/11. It was a call to civil war among muslims. His dream is to reunite the muslim nations under a common ruler, a Caliph, as it used to be through most of the middle ages. Which is why there are much more bombings in Islamic countries than there are in the West.I would think about why people in the region have a reason to hate you, while the worst guys are pretty irrational, there is also many rational reason to be your enemy.
Why the WTC? Well, it was Big (read: great symbolic value). Bin Ladin needed a SYMBOL, so the coup had to be BIG. It's the major reason why it HAD to be a target in the U.S, otherwise noone might have noticed it. Plus, there were quite a few Muslims working there. Muslims that cooperated wth "the enemy". I don't deny that Bin Ladin considers America an enemy, but it's not the major problem. It's more like a nuisance. A nuisance majorly because they side with Israel, if they wouldn't do that most Islamic countries wouldn't even bother with America other than for economy. America is of quite significant insignificancy in the whole conflict, the whole mess is about the divided muslim nations and about Israel. Which brings in the U.S indirectly.
I don't want to blame the US for their alliance with Israel (rather the other way around, alliances would be forbiden to Israel by the law of moses...), sometimes I just wonder if it might be helpful to let the whole bunch down there battle it out. Allthough, it wouldn't be quite fair, since Israel is the only nation in the region with nukes. Now guess why THAT is... :dry:
Anyways, now we've gone completely of topic. Let's catch bin ladin, and shoot him to the moon, that would be a good purpose for a space flight indeed...