Hong Kong's Opposition Gains More Clout HONG KONG - Pro-democracy opposition figures gained more clout in Hong Kong's legislature with three new seats, but they fell short of expectations and resumed grumbling Monday about a system they call unfairly rigged.    Although the opposition remains stuck mainly with the power to criticize, it gained a loud new voice with the stunning election win by Hong Kong's top protester, "Longhair" Leung Kwok-hung, who is known for burning flags and raising a ruckus in his trademark Che Guevara T-shirt...