This drive by is the closest cameras can get to Tiananmen Square.<br/> <br />It's the 25th anniversary of the Beijing massacre and Chinese security are swamping the area.<br/> <br />It was a different story in 1989 when thousands of protesters, who were gathered there were removed by force on June 4th and hundreds were killed in these nearby streets.<br/> <br />Today, the government has done its utmost to snuff out any mention of the crackdown.<br/> <br />Dozens of activists have been detained to ensure their silence on the anniversary.<br/> <br />(SOUNDBITE) (Mandarin) UNIVERSITY STUDENT TIAN RUI, SAYING:<br/> <br />"Uh, no...I don't know. Well...How do you put it? Sorry, I can't take this interview."<br/> <br />But here in Hong Kong the Tiananmen Square anniversary makes headlines.<br/> <br />The former British colony still has a high degree of autonomy.<br/> <br />. (SOUNDBITE) (English) HONG KONG FEDERATION OF STUDENTS, TREASURER, RENZ TSE, SAYING:<br/> <br />"We understand the importance of fighting for the democracy of the China
