Here's the problem: A recent poll taken in Saudi Arabia reveals that around 50% of all Saudis support bin Laden and his views. That's around 12 million people. And I suspect support for bin Laden has similar support in Pakistan, which would be around 80 million people.
Are you prepared to kill all of those "bin Ladenists?"
And in places like Turkey, Iran, and Jordan probably about 1-5%.
They talk a good game, but talk is cheap and America doesn't kill based on poll results. Me thinks those poll numbers will decline over time in the face of America's continuing resolve and success in the fight against terror.