What's the Point of the Sochi Protests?

What's the point of the Sochi protests? Gay rights activists across the world are holding a day of protests against the Russian government, just two days before the Winter Olympics begin in Sochi. They are in particular calling on the sponsors of the Games to speak out against what they call "anti-gay laws". We are live at the protest in London and in Sochi, to hear protesters and Russians talk to each other.