How World War II Helped Forge the Modern FBI

J. Edgar Hoover (second from left) stands behind Franklin Delano Roosevelt as the president signs a bill in 1934. Photo by Bettmann / Getty Images If the invasion of Poland in September 1939 produced a shiver of fear in the United States, the invasion of France in the spring of 1940 instilled a lasting sense of dread. During a few days in early May, the Nazi army blitzed into Belgium, Luxembourg, Holland and…