No one understands better the importance of symbolic imagery than totalitarian governments. One day this photo will be revered in China.
I am hopeful that democratization will start in earnest immediately after the 2008 Olympics. Current leadership should be finalizing exit plans.
Tiananmen Square protests of 1989 – Wikipedia, the free encyclopedia

The Unknown Rebel – AP photographer Jeff Widener. A lone protester delayed the tanks for over half an hour.