From Channel News Asia BEIJING: He's the only one who can top Beijing's Winter Olympics mascot "Bing Dwen Dwen" in a popularity match. Japan's star figure skater Yuzuru Hanyu, still hidden from public view but finally confirmed to be in Beijing, has become the top trend on China's social media site Weibo, outdoing the country's most-sought-after mascot in its native land. After keeping fans and journalists on tenterhooks for days, the Japanese Olympic Committee said the twic