The James Bond aspirations and downfall of FBI agent Robert Hanssen.

Robert Hanssen, a notorious double agent who was convicted of spying for Russia in 2002, has died in prison at the age of 79. Hanssen's downfall rocked the intelligence community and shocked the country. Eric O'Neill, an FBI newcomer who helped convict Hanssen, said he regretted not being able to confront him one last time. Hanssen was a counterintelligence supervisor and a devout Catholic, but also a sexual deviant who invited his best friend to watch him have sex with his wife on a secretly installed television system she never knew about.