The 36th anniversary of a bloody crackdown that ended pro-democracy protests in China passed like any other weekday for most Chinese. And that's how the ruling Communist Party wants it. Security was tight Wednesday around Beijing's Tiananmen Square, where weeks of student-led protests shook the party in 1989. Hundreds and possibly thousands of people were killed in a June 4 crackdown. The Communist Party bans any public commemoration of the events. In recent years, that ban has been extended to Hong Kong. It is only in Taiwan that June 4 gatherings can still take place.