The President's News Conference
06/01/1949
https://www.presidency.ucsb.edu...
I hereby delegate to the Secretary of the Treasury authority to prescribe such rules and regulations not inconsistent he...
As President, I feel it my duty to protect the men who are engaged in this crucial work from such attacks.
I am concerned that the program outlined above be initiated at the earliest practicable date.
The weapons of destruction have become so powerful and so terrible that we can't even think of another all-out war.