In this Dateline classic, when Marie Singleton suddenly vanished, authorities wondered if she was a runaway, a victim of crime, or something else? Her secret job in the CIA would be revealed. Josh Mankiewicz reports. Originally aired on NBC on December 6, 2013.
In this Dateline classic, when Marie Singleton suddenly vanished, authorities wondered if she was a runaway, a victim of crime, or something else? Her secret job in the CIA would be revealed. Josh Mankiewicz reports. Originally aired on NBC on December 6, 2013.