Hong Kong's unprecedented protests and police crackdown, explained

On Wednesday, student groups led peaceful marches to protest China's new plan for Hong Kong's 2017 election, which looked like China reneging on its promise to grant the autonomous region full democracy...
...in August, Beijing announced its plan for Hong Kong's 2017 elections. While citizens would be allowed to vote for the chief executive, the candidates for the election would have to be approved by a special committee just like the pro-Beijing committee that currently appoints the chief executive. This lets Beijing hand-pick candidates for the job, which is anti-democratic in itself, but also feels to many in Hong Kong like a first step toward eroding their promised democratic rights.