The G-20 begins tomorrow, but activists are gathering this morning in London to protest the summit. Along with hundreds of others, demonstrators from a group called the G-20 Meltdown plan to converge from four London subway stations on the Bank of England, led by multicolored figures representing four horsemen of what they term the the economic apocalypse “war, climate chaos, financial crimes and land enclosures and borders”. Isn’t that five? In the midst of the chaos is the BBC’s Ollie Williams. He has the bird’s eye view of the entire city. He’s live mapping the protests.