Former American college student Glenn Duffie Shriver studied abroad in Shanghai, People's Republic of China.
There, he became a target of Chinese intelligence services and crossed the line when he agreed to participate in espionage-type activity.
He pleaded guilty to conspiring to commit espionage for a foreign government and was sentenced to a four-year term in federal prison.
This video contains excerpts from a prison cell interview where Shriver tells his own story, and warns U.S. students about the foreign intelligence threat. (more)
