not china - vietnam.
china would have been the tienniman (sp?) square protests, and a man stepped in front of a tank. it was sent around the world and if I recall a news special a few years later, that man "disappeared"
I chose the picture because Kryp2o's new avatar, everytime I see it, makes me think it is this pic.
I know that Dave Navarro (former guitarist for Jane's Addiction and brifly RCHP) has one wall of his apartment done with that image. He did it as a reference to a scene in "Stardust Memories" which I think, if I recall correctly, is a Woody Allen movie.
The image is from the Vietname war, and it is Nguyen Ngoc Loan (with gun) and a Viet Cong prisoner. Eddie Adams won the pullitzer priize for the photo, and if I recall correctly, he had the camera up and was talking to the man (Loan) and was being told that the prisoner was seen killing people and was a known Viet Cong leader, thereby was guilty.
at that point he raised the gun and the pic went down in history.
Adams (photographer) continues to back Loan's move - the pic has brought about much negative criticism, but Adams claims that the man should be seen as a hero...
that is about all I know in reference to it.