4 arrests in China spy cases

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Federal agents arrested a Pentagon official and three other persons yesterday in a nationwide sweep of Chinese espionage agents.

Senior U.S. officials said the 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.

Gregg William Bergersen, 51, of Alexandria, worked for the Defense Security Cooperation Agency (DSCA) in Arlington and was arrested at his home on charges of selling secrets to foreign agents.

Tai Shen Kuo, 58, a Taiwan-born U.S. citizen, and Yu Xin Kang, 33, a Chinese national, were arrested in New Orleans as part of the spy ring that worked under the direction of a Chinese intelligence official based in Beijing. Both face charges of conspiracy to provide defense secrets to China.

Kenneth L. Wainstein, assistant attorney general for national security, said in announcing the arrests that Chinese spies are among the most aggressive and are "particularly adept and particularly determined and methodical in their espionage efforts."

Recent cases have shown Beijing obtained secrets and technology at "close to Cold War levels," ranging from battlefield night-vision equipment to accelerometers used in the development of smart bombs and missiles, he said.

One Pentagon official said the case is potentially very damaging because Mr. Bergersen was director of the Navy's command, control, communications and intelligence office in the early 2000s. The office has access to the most sensitive information on U.S. warfighting capabilities, a key target of China's military spies.

Mr. Bergersen was employed as a weapons system policy analyst for the DSCA, which is in charge of U.S. arms sales to foreign nations. He held a top-secret clearance.

Court papers show that Mr. Bergersen was paid cash by Mr. Kuo in exchange for information about military communications used to link U.S. and Taiwanese forces, and a classified list of arms sales to Taiwan.