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A woman walks past the United States embassy in Beijing on February 6, 2010 where a US missionary released by North Korea after entering the communist country on Christmas Day to protest against human rights abuses is being assisted by embassy consular officers after his arrival in Beijing en route to his homeland, the US embassy said.  North Korean authorities detained Robert Park, 28, for illegal entry after he crossed a frozen border river from China carrying a letter calling on leader Kim Jong-Il to free political prisoners, shut prison camps, improve rights and step down. The missionary had expressed "sincere repentance" for his actions, which were prompted by "false propaganda" from the West, the North's official news agency said on February 5 upon announcing his release.    AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
A woman walks past the United States embassy in Beijing on February 6, 2010 where a US missionary released by North Korea after entering the communist country on Christmas Day to protest against human rights abuses is being assisted by embassy consular officers after his arrival in Beijing en route to his homeland, the US embassy said.  North Korean authorities detained Robert Park, 28, for illegal entry after he crossed a frozen border river from China carrying a letter calling on leader Kim Jong-Il to free political prisoners, shut prison camps, improve rights and step down. The missionary had expressed "sincere repentance" for his actions, which were prompted by "false propaganda" from the West, the North's official news agency said on February 5 upon announcing his release.    AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

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US issues health warning to Americans in China

US officials have issued a health alert in China after a US government employee stationed there reported "abnormal sensations of sound and pressure" that indicated a mild brain injury. CNN's Matt Rivers reports.

US issues health warning to Americans in China

US officials have issued a health alert in China after a US government employee stationed there reported "abnormal sensations of sound and pressure" that indicated a mild brain injury. CNN's Matt Rivers reports.