The Most Awful Responsibility

““Alex Wellerstein clears away the dead timber in this gripping investigation of President Truman’s relationship with the atomic bomb. I thought I knew the story but learned much that I didn’t know. Outstanding!“— Richard Rhodes, Pulitzer Prize Laureate for The Making of the Atomic Bomb”A nuanced portrait of a president who shaped the modern nuclear age.” — Kirkus Reviews“What if so much of what we always thought we knew about Truman’s use of the bombs wasn’t true? If Alex Wellerstein is right, you will never be able to have another discussion about the dropping of the atomic bombs in 1945 without taking into account the points made in this book. This is historical research at its best. It challenges long-held beliefs on the decision to use atomic weapons on Hiroshima and Nagasaki while highlighting why nuclear weapons evolved as they did after 1945.” — Dan Carlin, host of the Hardcore History podcast and author of the New York Times bestseller The End Is Always Near”Many people think that the U.S. decision to use atomic bombs against Japan in 1945 was made by a pro-nuclear President Truman, hoping to persuade the Japanese to surrender to the Allies and end six years of war. But Wellerstein argues that this was not the case… . This must-read book takes readers on a journey through the use of atomic weapons as it relates to the geopolitical landscape and how the Hiroshima and Nagasaki bombing shaped current views on atomic weapons and deterrence.” — Thomas O’Brien, Library Journal (Starred Review)“Harry Truman presided over the only wartime use of nuclear weapons, and he also more forcefully checked military encroachments on this weapon than any subsequent commander-in-chief — all while the world descended into a rather hot Cold War. In this page-turning account, Alex Wellerstein brings us closer than we have ever been to understanding the paradoxes of how, through numerous actions and inactions, large and small, one quite ordinary man — perhaps because he was so ordinary — shaped the nuclear age.” — Michael D. Gordin, Professor of Modern and Contemporary History at Princeton University, author of Five Days in August: How World War II Became a Nuclear War“Harry Truman presided over the only wartime use of nuclear weapons, and he also more forcefully checked military encroachments on this weapon than any subsequent commander-in-chief — all while the world descended into a rather hot Cold War. In this page-turning account, Alex Wellerstein brings us closer than we have ever been to understanding the paradoxes of how, through numerous actions and inactions, large and small, one quite ordinary man — perhaps because he was so ordinary — shaped the nuclear age.” — Michael D. Gordin, Professor of Modern and Contemporary History at Princeton University, author of Five Days in August: How World War II Became a Nuclear War”“Alex Wellerstein clears away the dead timber in this gripping investigation of President Truman’s relationship with the atomic bomb. I thought I knew the story but learned much that I didn’t know. Outstanding!“— Richard Rhodes, Pulitzer Prize Laureate for The Making of the Atomic Bomb”A nuanced portrait of a president who shaped the modern nuclear age.” — Kirkus Reviews”Many people think that the U.S. decision to use atomic bombs against Japan in 1945 was made by a pro-nuclear President Truman, hoping to persuade the Japanese to surrender to the Allies and end six years of war. But Wellerstein argues that this was not the case… . This must-read book takes readers on a journey through the use of atomic weapons as it relates to the geopolitical landscape and how the Hiroshima and Nagasaki bombing shaped current views on atomic weapons and deterrence.” — Thomas O’Brien, Library Journal (Starred Review)“What if so much of what we always thought we knew about Truman’s use of the bombs wasn’t true? If Alex Wellerstein is right, you will never be able to have another discussion about the dropping of the atomic bombs in 1945 without taking into account the points made in this book. This is historical research at its best. It challenges long-held beliefs on the decision to use atomic weapons on Hiroshima and Nagasaki while highlighting why nuclear weapons evolved as they did after 1945.” — Dan Carlin, host of the Hardcore History podcast and author of the New York Times bestseller The End Is Always Near

Alex Wellerstein is an Associate Professor in the Science and Technology Studies program at the Stevens Institute of Technology. He is the author of Restricted Data: The History of Nuclear Secrecy in the United States, and he has written for The New Yorker, Atlantic, Harper’s Magazine, and many other venues. He is perhaps best known as the creator of the NUKEMAP, the world’s most popular online nuclear weapons effects simulator. He is also the author of the Doomsday Machines blog, and he has taught at Harvard, MIT, and Georgetown University.