The Justice Department announced Tuesday that a former CIA officer suspected of working with China to identify informants in the country has been arrested and charged with unlawful retention of national defense information.
Jerry Chun Shing Lee, 53, left the CIA in 2007, and in 2012, the FBI began to investigate him as more and more informants in China started to die or go to prison. Lee lived in Hong Kong, but during a 2012 trip to the U.S., FBI investigators searched his luggage and found journals containing classified information; prosecutors say the handwritten notes included details about meetings with informants and the names and phone numbers of undercover agents.
Some intelligence officials believe Lee worked with the Chinese government, The New York Times reports, while others think it's possible China was able to hack the secret communications channels the CIA uses to talk to informants. Since 2010, more than a dozen CIA informants have been killed or imprisoned by the Chinese government.