Hundreds of thousands of Hong Kong people took to the streets on Sunday to protest against a proposed law that could allow criminal suspects to be extradited to mainland China.  A former British colony, Hong Kong was handed over to Chinese rule in 1997 under the promise that the city could enjoy civil liberties not available in the mainland.  But in recent years, Beijing’s growing influence over Hong Kong has triggered concerns about the city’s autonomy.  Many people are worried the…