British detectives were scrambling Thursday to uncover who poisoned a Russian former double-agent and his daughter with a nerve agent, as doctors battled to save their lives and that of a policeman who also fell ill after coming to their aid. Sergei Skripal, 66, who moved to Britain in a 2010 spy swap, is in a critical condition in hospital along with his daughter Yulia after they collapsed on a bench outside a shopping centre on Sunday. The brazen poisoning in the southwestern English city of Salisbury is already being linked with Russia by British politicians and the media, sparking an angry response in Moscow.
