Born on April 18, 1944, Bob Hanssen was a respected FBI agent, family man and staunch Catholic conservative. He was also leading a secret double life spying for the Russians, hanging around strip clubs and surfing Internet porn sites. Long seen as the greatest security breach in U.S. history, his crimes formed the basis for the movie Breach.
The story of legendary exotic dancer Mata Hari, aka Margaretha Zelle, accused of being a double agent for the French and Germans during World War I, she was tried and executed before her true allegiance could be learned. The reputation she earned as a great seductress, however, lives on.
On August 7, 1954, spy Jonathan Jay Pollard was born in Galveston, Texas. In 1987, Pollard was sentenced to life in prison for passing classified information to Israel while working in US civilian intelligence.