4. Jonathan Pollard
Pollard is often referred to as one of the U.S. most notorious two-sided agents who functioned as a cold war spy. Up to this moment, Pollard is known to be a man of legacy with a double standard. To the nation of America, Pollard is referred to as a double legacy man and a traitor, while the nation of Israel regards him as a true soldier, even a hero.
Pollard never swore his allegiance to his country of origin. He began the sales of classified documents to the secret service of Israel in the year 1984.
