|Delegates of the Potsdam Conference in Germany prepare to leave
the conference room at Cecilienhof Palace. Soviet leader Josef Stalin talks
to Secretary of State James Byrnes and President Harry S. Truman (back
to camera). Below -- President Truman wrote a note on the back of this
photograph describing the conversation that actually took place "In
which I tell Stalin we expect to drop the most powerful explosive ever
made on the Japanese. He smiled and said he appreciated my telling him
-- but he did not know what I'm talking about -- the Atomic Bomb!".