Western targets are western targets, whether in Bali, Madrid, London, or the United States. The fact that the al Qaeda affiliated terrorists still operate and are able to carry out attacks against western interests should be proof to anyone that the threat has been far from diminished. For instance, a near catastrophe was recently averted in London. How you look at that and conclude that "we" (whether "we" is Americans, westerners, or whomever) are safer is utterly mind boggling.
Let's consider other facts: the World Trade Center was first targeted in 1993. Since more time passed between that event and the attacks of September 11, 2001 than Sept. 11th, 2001 and the present would you be so bold as to argue that "we" were safe on September 10, 2001?
And how do you reconcile your belief that Europeans are "weaker targets" when there are consistent reports that more attacks are being plotted against the U.S.?
And get your facts straight: the Madrid bombing occurred three days before an election. The ruling party was in support of the war in Iraq, while the opposition party and the vast majority of Spaniards opposed the war. The attacks led to the defeat of the ruling party and Spain's withdraw from Iraq.
The London bombings came when the UK under Blair continued to pledge his unyielding support for British involvement in the war.
Let me conclude be reiterating that your statement that I prefer American civilians deaths to military engagement was profoundly stupid.