DEBATE : Hong Kong's so-called umbrella protests are snowballing into what's shaping into one of the biggest challenges to Beijing's authority since the Tianamen Square protests of 1989. It all started with students protesting China's rejection of local demands to elect a chief executive of islanders' own choosing. Instead, those candidates will be handpicked by Beijing. Who's driving the protests? Will Beijing crack down... and what future for that territory handed over by Britain 1997?
