These protesters say they're unafraid -- standing firm in their fight for democracy, despite recent clashes with police.<br/> <br />Tens of thousands of demonstrators, camped out in Hong Kong's central business district, are demanding full democracy.<br/> <br />...And they're calling on the city's leader, Leung Chun-ying, to step down.<br/> <br />Some are calling it the "Umbrella Revolution" - with umbrellas being used as sun shields, but also as protection against pepper spray.<br/> <br />(SOUNDBITE) (English) UNIDENTIFIED PROTESTER, SAYING:<br/> <br />"I was there when they first started firing the first tear gas. We were all harmless people, you see here we're using umbrellas to protect ourselves."<br/> <br />The unrest is the worst Hong Kong has seen since China took back control in 1997.<br/> <br />But the police are not backing down, and are calling on the demonstrators to leave the streets.<br/> <br />(SOUNDBITE) (English) ASSISTANT COMMISSIONER OF POLICE, CHEUNG TAK-KEUNG, SAYING:<br/> <br />"We strongly condemn the viole