HONG KONG -- Thousands of protesters rallied for more democratic freedoms in Hong Kong on Wednesday, a national holiday marking the birth of communist China. Huge crowds filled the streets of Hong Kong for the fifth day of mass protests, sparked by Beijing's decision to pre-screen candidates in the semi-autonomous territory's forthcoming leadership election. Hong Kong's current chief executive, Leung Chun-ying, attended China's National Day celebrations on Tuesday and was heckled by protesters, who are calling for the pro-Beijing leader to resign.