I reminded the House of Commons of the Tienanmen Square massacre in a question to the Deputy Prime Minister today and asked why those who demonstrated against the visit of President Trump were absent when the President of China visited.  (See link to video below).

from Hansard:- 

Michael Fabricant: Thirty years ago this week, some 2,000 democrats—maybe more, but we will never know the number—were murdered in Tienanmen Square. Even now in China, a great firewall prevents Wikipedia, Google and others from communicating with the Chinese people. Although China has moved on, does my right hon. Friend not think it the height of hypocrisy that those who demonstrated against the President of America chose not to demonstrate against the President of China when he came here?

David Lidington:  My hon. Friend makes a telling point about the inconsistency in standards among some leading members of this House. It was indeed 30 years yesterday since the tragic and shocking events in which so many people lost their lives while protesting peacefully in and around Tiananmen Square. The sad truth today is that people in China are still unable to exercise their right to protest peacefully—a right given to them by international agreements to which the Chinese Government have signed up. We continue to urge the Chinese Government to respect citizens’ freedom of association, assembly, expression and other fundamental rights and freedoms as is supposed to be enshrined in China’s constitution as well as in international law.