Theologians blithely attribute pain to the Fall, ignoring the marvelous design features of the pain system. Every square millimeter of the body has a different sensitivity to pain, so that a speck of dirt may cause excruciating pain in the vulnerable eye whereas it would go unreported on the tough extremities. Internal organs such as the bowels and kidneys have no receptors that warn against cutting or burning—dangers they normally do not face — but show exquisite sensitivity to distention. When organs such as the heart detect danger but lack receptors, they borrow other pain cells ("referred pain"), which is why heart attack victims often report pain in the shoulder or arm. The pain system automatically ramps up hypersensitivity to protect an injured part (explaining why a sore thumb always seems in the way) and turns down the volume in the face of emergencies (soldiers often report no pain from a wound in the course of battle, only afterwards). Pain serves us subliminally as well: sensors make us blink several times a minute to lubricate our eyes and shift our legs and buttocks to prevent pressure sores. Pain is the most effective language the body can use to draw attention to something important.

My conservative instinct says there's really nothing new under the sun. Technology almost by definition is developed to solve problems (necessity, recall, is invention's mommy). But, as conservative philosophy teaches us, the "problems" of the human condition are permanent. So while technology is ever changing, the human desires we try to satisfy with technology remain constant. For example, every innovation in mass media has been a boon to the porn industry. You can be sure that when we finally create holographic technology, it'll be put to good triple-X use long before we have a chance to see Hamlet in digital 3-D.

In Rwanda and the Balkans, neighbors often killed neighbors. How did they turn on people they'd known all their lives? And in the Holocaust you had incidences of this, too — I'm thinking of Jan Gross' book, entitled "Neighbors," about a small village in Poland named Jedwabne where the Catholic half of the village killed the Jewish half simply because they were given permission to do so. You realize how thin this veneer of civilization is that we put up. We say we live as neighbors and in a community, but when something happens structurally that says now you have permission to persecute, to take from, to even kill people that you've lived with for years, the relative ease with which people can do that is incredible.

This lack of a sense of history has allowed us a kind of romance with race and ethnicity that is fanciful. I did a documentary some years ago about America and teenagers and the past and all these kids who were announcing themselves as wanting to recover their history, as though it was some reassurance, when everything I've ever read about American history is an embarrassment. It's filled with tragedies of all kinds. The notion that we would study history in order to feel better about ourselves is just ludicrous. But we have this romantic sense because we know it so little, our past really seems noble. I don't look to Aztec Mexico for any reassurance about my identity. I'm aware that Aztec Mexico was a decadent society; its bloodlust was so extreme that its ultimate sexual energy was its pursuit of death. There's nothing in that history for me that leads me to the romantic calendars that you see in Mexican restaurants with the Aztec, almost naked with the feathers coming out of his head, and the Aztec princess at his knees. Nothing of that is convincing to me. History is a terrible, terrible burden which we need to confront, but I don't think the search for authenticity begins there.

Noting that we're all human beings can be worthwhile, but it can also be a verbal white flag for abject moral surrender. Put another way: All the great political and moral conflicts have been between human beings. To date, civilization's greatest battles — rhetorical or otherwise — have not been with Styrofoam, dog hair, gerbils, or toe jam. Nazis are human beings. Murderers and pedophiles are human beings. To say that humanity somehow exonerates rather than confers accountability is to say that humanity is in fact meaningless. Joe Blow killed a child? Well, he's just a human being — cut him some slack. Sure, Jack the Ripper was a rough chap, but he was a carbon-based life form.

Intellectuals are inclined to think that they are certified as intellectuals by virtue of their capacity to complexify, and the messiness of history is such that any conflict provides ample opportunities to highlight evidence contrary to the general truth. In the present war and the larger story of which it is part, I continue to believe that America is — on balance and considering the alternatives — a force for good in the world. And I continue to be impressed by how many otherwise sensible people criticize that proposition as an instance of uncritical chauvinism rather than the carefully nuanced moral judgment that it is.

It's that experience of utter hopelessness, or moments of clarity, or hitting bottom, at which some sufferers typically call out to a higher power for help and others seek the aid of psychiatrists, healers and scientists. The common paradox in all these experiences is that personal powerlessness is twinned with personal responsibility: You suddenly realize that while no one can cure you, neither can you cure yourself on your own. You need God, or friends, or an institution, or a belief system, or something — anything — not yourself. And thus begins, in myriad forms, the archetypal untangling of epistemological knots that results, ultimately, in an unaddicted ego that knows it is both profoundly free and profoundly interdependent. And that's the basis of a healthy society. For that reason, many recovered addicts view with suspicion systems of government aid that seem to prolong dependency and/or to shield sufferers from the fundamental hopelessness of their situation. Thus we would expect Bush, not just as a political conservative, but as somebody who's experienced deep hopelessness, aloneness in the universe and the need for God, to view welfare and other government attempts to eliminate suffering as simply, and wrongly, shielding people from their true problems, the recognition of which alone could catalyze deep change.

I have lost many friends, and I've seen many more wounded — by snipers, by mortar shells, by land mines, and by crazed, Kalashnikov-wielding druggies at checkpoints. It has occurred to me that I have spent almost every working day of the past ten years living in a state of repressed fear... And then there's the nightmare of what we see: in Rwanda, piles of bodies being lifted by bulldozers after a genocide and dumped into mass graves — and the toughest of soldiers, supervising this, in tears. In Bosnia, little children being shot in the head. In Somalia and Ethiopia, the walking skeletons heralding those terrible famines. I remember once doing a live shot from a so-called famine camp in Somalia, in which I showed a man, told his story, and explained how ill he was. I suddenly realized that he was dying at that very moment. And I didn't know what to do — I didn't know how to move the camera away, how not to sully what was happening in real life. These images and these sounds will never leave me.

Because I believe in original sin, because I know that I'm capable of craving a cold beer in a village of starving kids, because I know that selfishness vies for space in our hearts with compassion, I believe we need government. A government that forces us to care about the common good even when we don't feel like it, a government that helps channel our better instincts and check our bad ones. I don't think government is good, just necessary.

One of the most fashionable notions of our times is that social problems like poverty and oppression breed wars. Most wars, however, are started by well-fed people with time on their hands to dream up half-baked ideologies or grandiose ambitions, and to nurse real or imagined grievances.