When nuclear physicist Leo Szilard delivers a petition signed by 73 scientists urging the president not to deploy the bomb, U.S. Secretary of State James F. Byrnes tells him: "You do not spend two billion dollars and then show them [American voters] nothing."

The Interim Committee appointed by Truman recommends unanimously that he use the bomb on "war plants surrounded by worker housing", without warning.

On July 16, the Trinity test shows that a plutonium bomb (Fat Man) is feasible and that a nuclear blast is even more powerful than scientists predicted.

Young army officers urge General Anami to join them in a military coup, but he tells them: "The emperor has spoken; we must obey him."

Though not widely reviewed, Hiroshima was praised online: "Fascinating, and surprisingly ambivalent, docudrama rehashes familiar terrain with remarkable freshness precisely because of the emphasis on the politicians (rather than on the scientists), the bi-national approach, and an odd mixing of dramatization, newsreel footage, and even a few talking-head interviews with people who were there.