Killing C.I.A. Informants, China Crippled U.S. Spying Operations

Advertisement Continue reading the main storyBut by the end of the year, the flow of information began to dry up.
Ten current and former American officials described the investigation on the condition of anonymity because they did not want to be identified discussing the information.
Advertisement Continue reading the main storyThe C.I.A.
In March, prosecutors announced the arrest of a longtime State Department employee, Candace Marie Claiborne, accused of lying to investigators about her contacts with Chinese officials.
has tried to rebuild its network of spies in China, officials said, an expensive and time-consuming effort led at one time by the former chief of the East Asia Division.

Read more on: http://nytimes.com