Tiananmen Square watch withdrawn from controversial sale by auction house
https://edition.cnn.com/style/article/tiananmen-square-watch-scli-intl/index.html
Though it can be a provocative event for Chinese Communist Party, it will definitely be an opportunity to let much more people know Tiananmen Incident. So, I think it's not wrong to put the watch on the sale in terms of informing people of the history. But, when it comes to political relationship with China, the auction should deteriorate it.
