In contrast to the current frosty state of relations between Beijing and Tokyo, those between Beijing and Taipei have been good, arguably their best ever. The arrests of a senior Taiwanese military intelligence officer and a Taiwanese businessman on charges of being double agents for China threatens to undermine that. Taiwan’s Defense Ministry says the arrest of the officer occurred on Monday after a four-year investigation. Colonel Lo Chi-cheng who was in charge at the bureau of building Taiwan’s spy network in China, is accused of having passed names of members of the network to Chinese authorities, according to local press reports. The businessman was named as Lo Pin, a Taiwanese spy run by Lo Chi-cheng and who was said to have been turned by China after being uncovered and arrested in Fujian in 2004. Lo Pin is reported to have in turn turned Lo Chi-cheng in 2007. One factor in the effect on cross-strait relations will be the extent of the damage done to Taipei’s espionage network.