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
Comment
Education
1 min read

When universities turn their back on understanding

Axing Nottingham’s single-honours theology degree signals more than a funding issue

Arabella Moore-Smith is studying Religion, Culture and Ethics at the University of Nottingham.

A campus sign spells out Nottingham in large letters
University of Nottingham.

Two weeks ago, the University of Nottingham announced it is to axe its single-honours Undergraduate degree in Theology and Religious Studies. While the joint honours with Philosophy and Religion, Culture and Ethics remain, the fact that Theology is discounted as a subject worth keeping to study in its own right is concerning. In a world that is becoming increasingly more divided, unoptimistic and confusing, the study of Theology provides deep levels of understanding to our world, increasing hope and providing a way forward. I fail to see how the University of Nottingham can remain a respected university without offering the opportunity to study such understanding. 

Studying religion and theology has been central to my personal development. I’ll never forget sitting in a classroom when it felt as if the world was opening up to me. I could understand people’s views on the afterlife halfway across the world, while simultaneously also understanding my classmates, and what they thought of these beliefs. 

GCSE and A-Level Religious Education went on to show me that it is one of the few subjects that illuminates all aspects of humanity. The study of religion and theology covers literature, philosophy, psychology, sociology, history, anthropology…; the list goes on. 

Often Philosophy and Theology are pitted against one another, but during my studies I discovered that the writings of Aristotle and Plato overlap with early Christian thinking, revealing to me that we are far more united in our history and beliefs than we assume. The philosophers’ discursive forms revealed not only something about the divine but also the human; the way that we argue, think, and reason. Thus, theology at its core aims to understand people, while also aiming to understand the divine; and this, I think, requires a level of fearlessness and honesty that other subjects cannot always provide.

This intrigue led me to Nottingham to study theology at degree level, and as I come to the end of my studies I know I will leave with more questions about our world and spirituality than I have answers. In particular, my life at university has provided me with the opportunity to interact with so many different types of people, and so, despite my personal faith, I know that the world shows us so many fractions of the divine in ways that aren’t quite clear. This is the beauty of studying theology; it encourages us to live in the uncomfortable. This is something that I think leads to us wanting to understand one another better.

While the cutting of theology at Nottingham shows a funding problem, this is part of a wider issue; crisis is visible all across our world. Israel-Palestine violence continues; the recent vote to release the Epstein files reveals layers of deceit in multiple leaders, and the recent murder of Charlie Kirk plummeted MAGA into a more extreme Christian nationalism. But the reporting on these kinds of stories, while important, has knock-on effects, especially for young people. 

In July 2025, Unicef reported that Gen Z consume news more than any other type of content, 6 in 10 of our generation reporting to feel overwhelmed. My age group’s over-exposure to the news drives us somewhat towards a desire for change, although this determination can lead to overwhelm. I have certainly felt this myself. But this is exactly where the study of theology can provide a light within deceit and despair. 

The studying of ancient holy texts and religious practices teaches me the nuances of human nature; we are sometimes good, sometimes bad. We also do not always communicate effectively. Mistranslations within texts lead to misunderstandings of the Bible, and for some people who read the Bible literally, their understanding of the Bible is their reality. Yet at the same time, by assuming that there is a God, theology seeks to understand how this indicates our need for a divine being to underpin these misunderstandings. Studying theology encourages higher tolerance levels for others’ beliefs.

While the council at the University of Nottingham may argue that it is continuing its other religion degrees, the removal of single honours theology hints at something deeper than financial issues. It shows a lack of effort to understand the value that religion has on our society today. The Israel-Palestine war, for example, is underpinned by identity and religion, and cannot be understood without sufficient education on Jewish and Palestinian history. The decision that Religious Education will be added into the new national curriculum (ironically announced the day before Nottingham’s announcement of course cuts) is a step in the right direction for the encouragement of religious education in UK schools, but without Russell Group universities like Nottingham providing a Theology degree, I am concerned for the future of religious understanding in our society. 

Let’s save Theology at the University of Nottingham.  Please sign our petition.

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