Obama seeks unity on stimulus plan (Obama in UK)

Barack Obama, the US president, is in London to meet G20 leaders in an attempt to find unity on how to tackle the global financial crisis.The series of bilateral meetings in the British capital on Wednesday will come on the eve of a G20 summit likely to focus on how best to solve the worst global recession in 80 years.Obama is meeting Gordon Brown, the British prime minister, and will later hold talks with the presidents of China and Russia in the run up to the G20 conference.Thousands of police officers are on standby in London to monitor what are expected to be large-scale popular protests calling for world leaders to do more for the poor and the environment.