To avoid detection

By 2004, he and Bergersen had formed a business relationship. Bergersen wanted to Rosetta Stone promote C4ISR in Taiwan and believed Kuo could help. The two would go to dinner, with Kuo picking up the tab. They discussed going into business upon Bergersen's retirement, and Kuo promised a job with a six-figure salary. They traveled to Las Vegas, Nevada, and Kuo gave Bergersen gambling money and show tickets. In return, Bergersen supplied Kuo with classified information related to C4ISR and other U.S. defense technology and communications systems, which Kuo then gave to Hong. Kuo began using encryption software to send e-mails and also enlisted a "cutout" a young woman who had worked with him in the furniture import business and with whom he began having an affair to sometimes serve as a go-between with him and Hong. To avoid detection, Hong suggested that Kuo buy prepaid phone cards and use public telephones. He wanted him to change his email addresses often and mail documents to him from the airport or other public locations. For the most part, Kuo ignored his advice. He would testify later: "I didn't think I can get caught." But FBI agents Rosetta Stone Language had stumbled upon Lin Hong's name in a separate investigation of a California engineer who illegally exported military technology to China. Investigative work in that case led to Kuo, and agents began planting recording devices in his rental cars and watching his Internet activity. They also bugged Fondren's home, and watched Bergersen. On Feb. 11, 2008, almost two decades after his first meeting with Lin Hong, Kuo was arrested and charged with espionage. Quickly pleading guilty, he began cooperating with the government. He testified against his old friend Fondren, helping convict him of communicating classified information to an agent of a foreign government and making false statements to the FBI. On the stand, Fondren himself said: "I had no idea that the guy that I thought was one of my best friends, one of the great American success stories, was worse than a thief. He's a traitor to this country. ... I'm the first to salute the government for getting him." Sentenced in 2010 to three years, Fondren remains in a federal penitentiary in Pennsylvania. He did not respond to written requests to be interviewed. Bergersen, who was arrested the same day as Kuo, pleaded guilty to conspiracy to communicate national defense information and was sentenced to almost five years in prison, although he is scheduled to be released to home confinement in Texas by the end of June. He maintains that he did not act for financial gain but rather to help promote the defense system he had spent years working on. "I deluded myself into believing it was acceptable to act illegally for good results," Bergersen said in a written testimonial forwarded to The Associated Press by his cousin. "I know now that Rosetta Stone American English I was not deceived by Kuo's lies and deceptions but by my own sins."