HONG KONG - JUNE 01: A protester pedals a mock tank during the pro-democracy march through Hong Kong to mark the 25th anniversary of Tiananmen Square massacre on June 1, 2014. (Photo by Jessica Hromas/Getty Images)
HONG KONG - JUNE 01: A protester pedals a mock tank during the pro-democracy march through Hong Kong to mark the 25th anniversary of Tiananmen Square massacre on June 1, 2014. (Photo by Jessica Hromas/Getty Images)