Chinese-American citizen Kai Li, jailed in China on spying charges he denies, received a rare in-person visit last week from the U.S. Ambassador to Beijing and urged the U.S. government to continue to work for his release, Li's son said on Friday.
Over the course of the past month, U.S. Ambassador Nicholas Burns had the first meetings in more than five years with at least three U.S. citizens whom Washington says have been wrongfully detained, a senior U.S. official and family members said.
