A Look Back At How The FBI Used 'Ultra' Intelligence In World War II

The FBI web site offers an interesting historical piece on how the FBI used "Ultra" intelligence during World War II.

Winston Churchill and Dwight Eisenhower thought the intelligence was vital to Allied victory in World War II. Eisenhower is said to have called it “decisive.” Churchill was reported to be even stronger in his assessment to King George VI.

The intelligence was called “Ultra’’—because it was so highly secret—and it consisted of intercepted and later decoded radio and cable messages sent by the Nazis to their clandestine networks in Europe and South America during the war. Ultra was launched by British intelligence in 1941 and ultimately became a cooperative Allied effort.

You can read the rest of the piece via the below link:

http://www.fbi.gov/news/stories/2011/october/intelligence_100611/intelligence_100611?utm_campaign=email-Daily&utm_medium=email&utm_source=fbi-top-stories&utm_content=36260