Watch The Decision to Drop the Bomb (1965) : Full Movie Online Free J. Robert Oppenheimer and other key figures involved in the decision to drop the first atomic bomb discuss their motivations in this NBC News documentary. Originally produced and televised in 1965, two decades after the bombings of Hiroshima and Nagasaki, it was re-released in 2023 with an epilogue by Michael Beschloss, NBC News Presidential Historian.