The American Institute in Taiwan (AIT) yesterday confirmed to the Taipei Times that US authorities are assisting Taiwan with an investigation into the activities of General Lo Hsien-che (羅賢哲), who was arrested last month on suspicion of spying for China.

Lo’s espionage activity, described as possibly the worst spy case to hit Taiwan in the past half century, is believed to have begun in 2004 when he was recruited by Chinese intelligence while he was posted in Thailand. News of the arrest sparked fears that Taiwan’s military might have been severely compromised, especially its command, control, communications, computers, intelligence, surveillance and reconnaissance (C4ISR) systems, to which Lo is believed to have had access.