The Biden administration is reversing a 1954 decision that revoked J. Robert Oppenheimer, known as the father of the atomic bomb, of his security clearance and ultimately ended his career as a physicist.
The famed physicist became one of the world's leading researchers in theoretical physics — and became an integral figure in the creation of the atomic bomb during World War II — but later arose suspicion due to his association with progressive causes and opposition to developing the hydrogen bomb.
