American PR whores serving China’s propaganda machine, beware.
A person who is a national of the United States…shall lose his nationality by…entering, or serving in, the armed forces of a foreign state if…such armed forces are engaged in hostilities against the United States
China is an ally of North Korea. To this day, the armed forces of North Korea are still engaged in hostilities against the United States. (The cease-fire in 1953 did not end the Korean War; it merely suspended the fighting indefinitely.) In this light, the armed forces of China are engaged in hostilities against the United States. (And they are so engaged, de facto, in any case.)
China’s PR organs, most especially those who have organised the Torch Relay, directly serve the interests of the PLA. The Torch Relay is an instrument of PLA intervention in other countries, most especially Nepal.
In light of the above, it seems reasonable to argue that for a US citizen to contract with a Chinese corporation to serve the Olympic Torch’s PR campaign, is a de facto act of service for the armed forces of China, resulting in loss of US citizenship.