I personally agree with the folks who say we brought Islamic attacks on ourselves and that the long-term solution is to withdraw our military from the world. We should have the best defense we can afford and a counter strike force that would make the most aggressive nation think twice about messing with American commerce abroad or anything within our borders, but this occupation of almost every country in the world in the name of "peace" is making us less safe and clearly causing more wars than it has stopped.

But Mr. Lieb is right that we need to understand that the world is an unsafe place because human nature is not good and will defend its territory and want what its neighbor has, so violate the territory of others.  Therefore, we need to look toward our own defense and stop trying to be the world's policeman.