Essay
Comment
Morality
5 min read

Oppenheimer, my father, and the bomb

One week after its release, Christopher Nolan's latest blockbuster has left Luke Bretherton pondering an un-resolved disagreement with his late father and the theology of Oppenheimer's creation.

Luke Bretherton is a Professor of Moral and Political Theology and senior fellow of the Kenan Institute for Ethics at Duke University in Durham, North Carolina.

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I went to see the film Oppenheimer on its opening night at my local, community run cinema in Acton in west London. It was packed. The event felt more like going to church than to the movies. The film itself is a biopic of scientist Robert J. Oppenheimer who was a pivotal figure in leading the development of nuclear weapons during World War II.

Reflecting on the film afterwards it brought to mind a difficult and never resolved argument with my late father. In the aftermath of watching the film, I realised I was still haunted by our dispute.

Our argument centred not on whether it was right to drop the bomb. Our argument was about whether it was Christian.

My father was 18 in 1945 when atomic bombs were detonated over the Japanese cities of Hiroshima and Nagasaki, killing over 200,000 souls. He was conscripted into the British Army that year and stationed in India. If the war had not ended, he would have been among those deployed to invade Japan.

Our argument was not just about whether it was right to drop the bomb. It was also about whether it was Christian. My father was an ardent believer who converted to Christianity in the 1950s. His Christian commitments deeply shaped every aspect of his life and work. I followed in his footsteps, and at the time of our argument I was doing a PhD in moral philosophy and theology. In part I was trying to make sense of what it meant to be a Christian in the aftermath of events like the Holocaust and the dropping of nuclear weapons over Hiroshima and Nagasaki, events in which it seemed Christian beliefs and practices played a key part. In the film, this is marked by the stark symbolism of Oppenheimer naming the first test of the prototype nuclear weapon “Trinity” – an often used and key way in which Christian name God.

I had been learning about just war theory when the argument with my father erupted. I was having dinner with my mum and dad at their house. To give a bit of context, my father and I had a long history of sometimes bitter arguments over political matters. These began in the 1980s when I was a teenager. He thought Mrs Thatcher a hero. I did not.

I was telling them about just war theory and its history in Christian thought and practice. As with most of our arguments, we stumbled into it. I made a throwaway remark about how, in the light of just war theory, nuclear weapons were immoral and that their use in 1945 was wrong. And yes, I was probably being pompous and annoying like all those possessed of a little new knowledge and a lot of self-righteous certitude and fervour.

My dad replied with anger that I did not know what I was talking about. Didn’t I realize that if the bombs hadn’t been dropped many more would have died, including him, which meant I would not exist. Something like this argument was used in the film and was often used by Oppenheimer to justify his own involvement in developing atomic weapons.

At the time, I replied with a procedural point that nuclear weapons do not distinguish between combatants and non-combatants, a key distinction in determining the morality or otherwise of targets in war. To use nuclear weapons is to deliberately intend the indiscriminate killing of the innocent. This constitutes murder and not, as the euphemism has it, unintended collateral damage. I added insult to injury by declaring that my dad’s argument was also deeply unchristian as it was a version of the ends justify the means. Was it ever right to do evil even if good might be the result? This upset my father still further. For him it was personal. It was existential. The bombs saved his life. The bombs made our life possible.

The meal, like the argument, did not end well. We had both upset my mother. She banned us from ever talking politics at the family dinner table again. It was a lifetime ban.

What dawned on me was that the question of whether it was moral to possess, let alone use, nuclear weapons was also an existential question for me. 

Afterwards I thought more about our row. I replayed the script in my head, trying to think of what I should have said. In my immaturity, I never thought to consider how I should have said it.

What dawned on me was that the question of whether it was moral to possess, let alone use nuclear weapons was also an existential question for me. It was a question of what kind of existence warranted anyone possessing nuclear weapons. To use the language of the Cold War of which I was a child: was it better to be red than dead? Was it better to be invaded and taken over by Communists and see capitalism abolished and the British nation subordinated to a foreign power or to deter this possibility by possessing nuclear weapons, weapons that threatened to destroy all life on this planet? In other words, was my way of life really worth the threat of nuclear annihilation. Was any way of life or ideology or commitment or abstract principle worth that? I concluded that it was not and promptly joined the Campaign for Nuclear Disarmament (CND).

I have not attended a CND rally for many years. And what happened in 1945 is more complicated than I used to think. But I still disagree with my dad and think Oppenheimer was deeply misguided. And what happened after 1945 with the advent of the nuclear arms race is not complicated. The film portrays Oppenheimer as anticipating and trying to forestall the process of one-upmanship that developing the A-bomb and then the H-bomb set in motion. He was right to do what he could to stop the arms race, even though, as the film portrays, the authorities tried to silence and marginalize him for his efforts.

Today, if my father and I were able to have the argument again, I would approach it very differently. I hope I would be less pompous, annoying, and self-righteous. But mostly, I would be more theological. I would ask him whether he thought Jesus would drop a nuclear bomb to save a life, or whether Jesus’s own life, death, and resurrection pointed in a different direction. And then see where that conversation took us.

Article
Character
Comment
Friendship
Virtues
4 min read

As algorithms divide us, who should we be loyal to?

An ethicist’s answer, shows we need courage and wisdom too.

Isaac is a PhD candidate in Theology at Durham University and preparing for priesthood in the Church of England.

Three people sitting looking out over viewpoint are silhouetted against the sky.
Priscilla Du Preez on Unsplash.

What is loyalty? As we plunge into this new year of 2025 it seems as pressing a question as ever. The war in Ukraine rumbles on, a fresh Labour government continues to struggle with public opinion, and America returns to the unpredictable rule of the first president in its history to be a convicted felon. The algorithms of social media continue to segregate and amplify different audiences into ever more closed feedback loops and echo chambers. This may bolster loyalty to a point of view, but estrange us further from our friends and neighbours whose loyalties lie elsewhere. All of these and many other cases highlight the conflict of loyalties in our society and wider world. What is even more obvious is that if we are to make peace, cultivate love for enemies, and pursue the common good, then perhaps the most in-demand virtue of 2025, at the top over every wish list, might just be loyalty.  

But what really is loyalty?  

I was struck by a persuasive answer given by Dr Tony Milligan, research fellow in philosophical ethics at King’s College London, during his appearance on a recent episode of The Moral Maze on BBC Radio 4 that asked ‘is loyalty a virtue or a vice?’ He said loyalty is, “Sharing another person’s commitments and the willingness to go through various kinds of adversity in order to pursue those commitments and to further them.” Under cross examination and asked if loyalty is then an absolute virtue he responded, “I think that it’s absolute in the sense that we absolutely need to have it, that it’s basic to the human condition and not optional.” His second interrogator, Giles Fraser, then suggested a ‘high doctrine of mates’. In this doctrine you are loyal to your mates in all circumstances, even if they are ‘wrong-uns’. Dr Milligan’s response, when asked how he would characterise this ‘doctrine of mates’ position, was fascinating: “Addiction.” Fraser then asked if that addiction could be love. “It’s a case of love, and we don’t get to choose the people that we love. We find ourselves in the predicament and then try to make the best of it…I love my wife Susanne, I’ve been with her 31 years, and it’s love, and it’s also addiction. I just can’t envisage a world in which I would be without her.” This framed Dr Milligan’s final powerful point: love, and the loyalty which love entails, gives us our sense of value.  

I can bear witness to the truth of Dr Milligan’s intertwining of love and loyalty. Last autumn I became a father for the second time. My love for my eldest is so great that there was a real question: ‘if my love for my eldest is so total, so all encompassing, how can I possibly love a second as much?’ This question melted away as I gazed into her screwed-up face, moments after she entered the world. I am completely dedicated to ensuring that she flourishes and I would “go through various kinds of adversity in order to pursue” her flourishing. As Dr Mulligan also said, loyalty “is basic to the human condition and not optional.” Of course, how this total and non-zero-sum loyalty of love to both of my children actually works in practice requires of me thoughtful negotiation. If one wants to go to the park and the other wants to go to the swimming pool I cannot split in two and do both things at once. Loyalty, as finite human beings, requires wisdom in living in the middle of a messy network of demands and desires, of the preferences and needs of others. 

If loyalty is then one thing, it is the willingness to recognise that we are tied to other people, whether we like it or not. Cain’s question to God, when God came looking for Abel, is still pertinent: “Am I my brother’s keeper?” Perhaps the greatest disloyalty is the implied ‘no’ in Cain’s rhetorical question. In denying that he is bound to his brother he is disloyal not only to Abel, but to himself because he denies his own humanity and isolates himself from the humanity of other people. If we isolate ourselves, having loyalty only to ourselves, we lose the joy of being fully human. If we simply kill those we dislike, whether literally (in war or murder) or metaphorically (‘unfriending’, cancelling, pretending they do not exist), then we follow Cain. Loyalty, as the tie that binds us to the messiness of the real world where people vehemently disagree all the time, requires not only wisdom then but courage also. It takes courage to commit to one person in marriage. It takes courage to raise a child. It takes courage to continue to talk with and to love those with whom you deeply disagree.  

When practising our 2025 New Year’s resolutions let us make sure that amongst the commitments to get back to the gym and practice that new hobby that we remember to practice loyalty. Loyalty not only to those we love, but to those we might come to love. Let us be wise enough and brave enough to be fettered to those with whom we disagree, loyal to the humanity that binds us together.

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