Answer: J. Robert Oppenheimer’s role in the Manhattan project as the architect of the atomic bomb left such an indelible mark on the public conscience that the remaining fifteen years Oppenheimer spent railing against nuclear weapons seem a mere historical footnote.
Step-by-step explanation:
Oppenheimer played a key role in the Manhattan project as the strong man in the creation of the atomic bomb that marked the public opinion's conscience. After that, he spent his time advocating against nuclear weapons.