The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
“The head of the CIA, it seems to me, would think long and hard before he admitted that former employees of his had been involved in the murder of the President of the United States-even if they weren't acting on behalf of the Agency when they did it.”
“Every time I think that I am getting old, and gradually going to the grave, something else happens.”