Spy case patterns the Chinese style of espionage / The Christian Science Monitor, 30 Nov 2005

http://www.csmonitor.com/2005/1130/p01s01-usfp.html?s=hns
Peter Grier
"It isn't a classical KGB-like operation, featuring dead drops and microfiche passed in the night. China's espionage style is unique, according to US law enforcement. It depends on a multitude of relative amateurs: Chinese students and visiting scientists, plus people of Chinese heritage living in the US.
Each individual may produce only a small bit of data. But collectively the network might vacuum up an extensive amount of sensitive military and economic information."