Jade, many raised questions about "Father of Atom Bomb" (Not inventor of Atom Bomb) tag for Oppenheimer. He worked as a Manager and co-ordinator only in Manhattan Project directly reporting to Major General Groves. It is more of a political post rather than a scientific. There were many renowned physicists in Manhattan Project namely stalwarts like Niels Bohr ,Hans Bethe, James Chadwick, Richard Feynman. There were 20 Nobel laureates in total in the team. Oppenheimer was a kid in front of them as a scientist. So telling him "Father of Atom Bomb" is a gross exaggeration as many think.
Latter there was many controversy and official trail against him for his alleged Communist connection and also for espionage although not proven