A man reported to be a serving soldier is dead and two people have been shot in Woolwich, south east London, after what Sky sources understand is being treated as a terrorist attack. Downing Street has called a meeting of the Government's Cobra emergency committee after the incident in John Wilson Street, which David Cameron described as "truly shocking". Sky sources understand that senior police officers believe the killing was likely to be a politically-motivated Islamist terrorist attack. Dozens of weapons - including a number of knives - and pools of blood could be seen on the ground, where a...