We've been checking in all morning with the gathering protestors in London the day before the G-20 summit. London is braced for a day of demonstrations ahead of tomorrow's summit of G-20 leaders. This morning anti-capitalist and climate change protestors converged on the financial heart of the city, while this afternoon an anti-war demonstration is expected outside the American Embassy. The organizers insist their protests will be peaceful, but windows at a Royal Bank of Scotland building and other shops have been smashed. We return once again to BBC reporter Jack Izzard who is on the scene.