Tiananmen Square, 4 June 1989. Photograph: AP
Typically discussion of the 1989 events at Tiananmen Square focus on this photograph of defiance. We rarely see images depicting victims of of the brutal suppression of the opposition. The Guardian recently ran this image along with this recollection of the protests by writer Ma Jian and this slide show. And, of course, there have been a good many stories about how the Chinese government is shutting down communications in anticipation of the anniversary of the suppression of the protests. Speak up.
P.S.: Today at Lens the newish photo blog at The New York Times, Patrick Witty posted this series of four variations on the iconic image of the man in the white shirt carrying shopping bags in a standoff with tanks at Tiananmen Square. Witty contacted the four photographers - Charlie Cole, Stuart Franklin, Jeff Widener, and Arthur Tsang Hin Wah - and solicited their recollections of the event. Witty's post also links to this PBS/Frontline episode on the the event. You might also see the chapter that Robert Hariman & John Lucaites devote to the "tank man" photo in their No Caption Needed.