I like that you use the term evil. Its good versus evil right? Bush didn't get far with that terminology. I'm not alone in feeling that a period of non-interventionism from America might help. The interventions of late have been fumbled and clumsy when put in a positive light. Torture, killing and ugly unilateralism. Recent acts in the Middle East may have killed tens of thousands of militants, but does anyone think it has knocked back the numbers? The hundreds of thousands of innocent (and not-quite innocent) killed and wounded have family and friends. Those people are no longer friends of America. The question that never seems to be asked, is why did September 11 happen. Sure, American intelligence failed. But somewhere further back, diplomacy failed. It takes a pretty unhappy situation for people to arrange such an horrific act, why did they end up like that? And what can be done to prevent it happening again? Bombing and invading hasn't worked. What's plan B?
>>> I'm not alone in feeling that a period of non-interventionism from America might help.
I know. People that thought if USA sees no evil, hears no evil and refuses to speak about evil then all troubles would happen to somebody else existed since there was such thing as USA. They were wrong then and are still as wrong now.
>>> The question that never seems to be asked, is why did September 11 happen
You must be kidding me. One has to be unusually dense or unwilling to hear to ignore the deafening choir of non-interventionists and generic America-is-root-of-all-evil crowd blaming America for what happened at 9/11. Of course, it only tells us about them, not about why this heinous atrocity has really happened. The solution there is simple - these terrorists saw America as their enemy, and given the opportunity to deal a heavy blow to the enemy - opportunity enabled in some measure by complacency of the American administration, who for a long time thought terror is something that happens in bad places like Middle East but can't happen in America, despite many warnings to the contrary - given that opportunity, they struck their blow. One doesn't need any more complicated theory than that. As for why they chose America as their enemy - one doesn't need too much theory in that either, given that ideologists of Al-Qaeda explain it all by themselves. Their goals as religious fanatics dreaming of subjugating other people to their rule are incompatible with America's role as a world power strategically and with America's support of people unwilling to accept radical islamist rule tactically. Of course Al-Qaeda is the enemy of America - what else could they be, given that their premises are diametrically opposed to every premise this country is built on?
>>> Bombing and invading hasn't worked.
What you're calling "worked"? To make the strategy, you first have to define the goal. If the goal is "to ensure America is never the target of a terrorist attack", the solution is simple - America must cease to exist. If America exists, it can be target of a terrorist attack, and there's no known way to prevent it with 100% certainty. One, however, can make it harder to do, and for that there are many various plans, both good and bad.