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Some U.S.-based data firms and financial due diligence companies operating in China were targeted by investigators under a new counterspy law that went into effect July 1.

Critics blame the restructuring of CIA counterintelligence after the firing of CIA master counterspy James Angleton in 1975 for the security breaches.

Postal service and couriers and internet service providers must assist counterspy probes, the law says.

Lee said FBI counterspies improperly targeted him because he was Chinese American.

Lee would allege that he was improperly targeted by FBI counterspies because he was Chinese-American.