You certainly are living in a perpetual state of fear. You seem to assume that because I don't think we should invade a country every time we get the chance that I don't think National Security is important. Of course it's important, but going into Iraq isn't going to solve the problem. You're fabricating solutions in your mind because you don't know what the real solution is yet. No one does.
Your comment about who chooses where we go and where we don't is an interesting one. Well, I would have to say (and you aren't going to like it) that getting support from the international community would be a good start. At the time we invaded Iraq, it was probably 6th on the list of countries that was posing the biggest threat to us, and we didn't have international support.
The protests I was refferring to are not 'national' protests. I'm not saying 'the french protested' (which they did). I'm saying that millions of people across the globe, from america (including me), to spain, to italy, to france, to england, and so on went to their captiols and protested the policy that bush was taking. 50% of Americans were against the war before it started. I'm not talking about people with 'interests' in Iraq. I'm talking about people who recognized that this invasion was detrimental to our global balance and got up and spoke out about it.
I'm not saying that Saddam was a good guy. He deserved what he got (personally), but when it comes to your fear of a nuclear holocaust, deposing him was insignificant compared to what else has been going on around the world.
Finally, we haven't lost the entire EU as our allies, but there is still a lot of bitterness there. Isolating ourselves from the European community is just stupid and hard-headed. I think you'll find that we need their help sooner than you think, and if we don't start respecting their voices, we aren't going to get it.
Bush's tactics of swift and exacting revenge, along with public diversion by starting a war will not solve any problems. Your fear may be stronger than mine, and perhaps more accurate. That same fear, however, is making you blind and naive about the realities of the world. Ultimately, creating authoritarian control by invading countries that are easily defeated and villainized will not stop terrorists. If you'd just sit down and think about it, you'd realize this too.