Derek reminds us that 18 years ago, the Chinese government cracked down on protesters in Beijing's Tiananmen Square. In one of the better recent episodes of The Simpsons, the family visited China, and we the viewers are shown this "monument" at the place were several people were killed and injured at the hands of the military:

Screenshot from the episode of The Simpsons titled "Goo Goo Gai Pan" with a crude correction of the pinyin (in the episode it was "Tien An Men", originally found at TaiwanIndependence. More quotes from the episode at Watching China.