U.S. President Harry Truman publicly announces on January 31, 1950, his decision to continue and intensify research and production of thermonuclear weapons.(Hydrogen Bomb).
The weapon, theorized at that time to be hundreds of times more powerful than the atomic bombs dropped on Japan during World War II. Five months earlier, the Soviet Union successfully detonated an atomic bomb. Then, several weeks after that, British and U.S. intelligence came to the staggering conclusion that German-born Klaus Fuchs, a top-ranking scientist in the U.S. nuclear program, was a spy for the Soviet Union. More
