Materials presented chronologically.
Frieden, Terry. "Feds: U.S. Defense Analyst Leaked Secrets to China." CNN, 11 Feb. 2008. [http://www.cnn.com]
Gregg William Bergersen, a weapons systems policy analyst at the Defense Security Cooperation Agency, "has been arrested and charged with espionage." He is "accused of passing American military secrets to the Chinese government." In addition, "two Chinese immigrants -- Tai Shen Kuo, 58, and Yu Xin Kang, 33 ... -- were charged with conspiracy to disclose national defense information to a foreign government."
In a separate case, "Dongfan 'Greg' Chung, 72, a Chinese native who is a naturalized U.S. citizen [and] had been an employee of Rockwell International [and Boeing] for more than 30 years" was arrested in Orange County, California, and charged with "economic espionage and acting as an agent of China."
Gertz, Bill. "4 Arrests in China Spy Cases." Washington Times, 12 Feb. 2008. [http://www.washingtontimes.com]
According to senior U.S. officials, arrests in "two separate spy cases highlight the national security threat posed by Beijing's aggressive intelligence gathering of secrets and technology.... The arrests were carried out in Virginia, Louisiana and Southern California, and the secrets compromised include military communications technology, arms sales and corporate trade secrets related to the space shuttle, according to court papers."
Lewis, Neil A. "Justice Dept. Announces Arrests in 2 Chinese Espionage Cases." New York Times, 12 Feb. 2008. [http://www.nytimes.com]
By announcing the arrests in two separate espionage cases together, Justice Department officials "seemed to underline what officials described as continuing Chinese efforts to obtain commercial and military secrets."
Mikkelsen, Randall. "U.S. Defense Analyst Guilty in China Spy Case." Reuters, 1 Apr. 2008. [http://abcnews.go.com]
The Justice Department said on 31 March 2008 that "Gregg William Bergersen pleaded guilty at federal district court in Alexandria, Virginia, to conspiracy to disclose national defense information to unauthorized persons." According to court documents, "[m]uch of the information pertained to U.S. military sales to China's arch rival, Taiwan, and communications security issues.... Bergersen admitted in court papers that he gave national defense information" to Tai Shen Kuo, also arrested in February 2008.
"Charges of spying are still pending against Kuo, a U.S. citizen born in Taiwan, and [Yu Xin] Kang, a Chinese citizen accused of acting as an intermediary between Kuo and a Chinese official. Both have pleaded not guilty."
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