FYI, factor this in....
an EMP would be far more devastating than you make it out to be. It would fry all unshielded, solid-state computer chips. No motor controlled by a chip (the little black box that replaced your distributor) would operate, nor would any other machine or computer with a chip. That means no water, no electricy, no communication, no transport = no food, ....and you get the picture. [this is why the CCCP continued to use vaccum tubes in essential electronics, i.e. comms, utilities, and military aircraft] This is internal catastrophe that would distract us in a very big way. Think about the consequences of Pearl Harbor or 9/11 in terms of economic and political effects.... and those were small events compared to a potential EMP burst over LA or NYC. It is the perfect way to prepare for a larger event to follow. This is how you set up an ambush.... create a distraction (lethal or not) to cause your enemy to turn and move in a desired direction and then hit them with the big and most certainly lethal surprise.
Therefore, the field manual says "Always attack the ambush."
The idea behind pre-emption is to prevent all these possible events to spiral completely into chaos with far greater reaction and devastation than anything ever seen before. Hereby, and heretofor, we are back to "24". A society may be so moral as to allow this to happen because of the revulsion of co-ercive interrogation, but that society (i.e. Quakers, Amish, RB-World) can only exist within a larger one that will act to preserve them.
BTW, the recent atrocity that occurred in the Amish school (don't recall exact details, might Google it) is a remarkable and humbling example of a society's ability to forgive their fellow man. This incident might be an argument for how the U.S. should have reacted to 9/11. However, in that case, there was only one insane neighbor. I think that if it were known that there were tens of thousands of insane neighbors, training in large and well-funded camps for the sole purpose of carrying out numerous such atrocities across the world against undefended, innocent little girls, well, an argument might be made for doing all that you can to extinguish the movement.
How America Changed After Pearl Harbor - US News
The Japanese Attack on Pearl Harbor
The attack on Pearl Harbor stunned the U.S