According to 'The Daily Mail' Hansen found himself on the receiving end of his own hidden camera tactics after the married NBC anchor was secretly filmed on an illicit date with a blonde television reporter 20 years his junior.
He was the subject of a four-month long sting operation conducted by 'The National Enquirer' after he allegedly began an affair with former NBC intern Kristyn Caddell, a 30-year-old Florida journalist.
The Connecticut-based Hansen has been spending more time in South Florida recently for work, reportedly investigating the disappearance of James "Jimmy T" Trindade for 'Dateline.'
Hansen has worked for NBC for two decades, but became famous with 'To Catch a Predator.' Launched in 2005, the show is devoted to the subject of identifying and detaining those who contact people they believe to be below the age of consent over the Internet for sexual liaisons.
The show's producers work with online watchdog Perverted-Justice, whose volunteers pose as underage girls offering sex on the Internet. But when the potential sexual predators arrive to meet the girls, they find themselves confronted by Hansen, his film crew and sometimes the police.
Neither Hansen nor NBC has yet commented publicly on the alleged affair.