A student protester carrying a board walks next to a mock tombstone during a march in Hong Kong

 
A student protester carrying a board walks next to a mock tombstone during a march in Hong Kong
A student protester carrying a board walks next to a mock tombstone, symbolizing those who died during the June 4 military crackdown on the pro-democracy movement at Beijing's Tiananmen Square 23 years ago, during a march in Hong Kong May 27, 2012. REUTERS/Tyrone Siu