Wo was accused of passing data on missile guidance systems and other sensitive information to a group linked to Taiwanese intelligence agencies. Taiwan and mainland China have been divided amid civil war since 1949.

Ran Chen, right, and her sister Di Chen, left, speak about their father Wo Weihan, after Ran Chen...

Ran Chen, right, and her sister Di Chen, left, speak about their father Wo Weihan, after Ran Chen visited him in jail in Beijing Thursday, Nov. 27, 2008. The family members are in Beijing to appeal for Wo, a Chinese medical researcher who was convicted on charges of spying for Taiwan and was expected to be executed in coming days. The sisters said they have been granted an extra visit with their father, giving the family hope for a stay of execution. (AP Photo/Greg Baker)

(AP)
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