What I currently understand is that purely military action will not make the US safer. There is quite a bit of anger and resentment in the Arab world toward the US. The causes ranging from supporting Israel, to supporting other autocratic regimes that promise us oil, to the thousands of civilian causalities in Iraq from the US embargo that has cut the supplies of food.
Merely bombing Afghanistan just reinforces the opinion that the US is a nothing but a large bully pushing around the weak.
I think we're missing a dialog on how the "American Way of Life(tm)" is at fault for exploiting workers in other countries, for a flood of environmental catastrophes, for keeping a massive burden of debt on a number of countries that prevents any real internal development, and for supporting nearly any regime that promises us what we want.
I'm really not sure if there's a better way to rid the world of the taliban and bin laden then sending in military forces. But I do know that we want safety, there's plenty of other things that need to be done.
So what do others think? The core question is are there alternatives, and if so what? As much as I wish there were UN police officers who could just go into Afghanistan and arrest bin laden (and perhaps later the CEO of Nike), that doesn't seem to be practical.