EX-SPY Sergei Skripal’s daughter Yulia may have “unwittingly” been used to deliver the nerve agent which left the pair fighting for their lives in hospital, according to security sources.http://www.heraldscotland.com/news/16079137.Did_former_Russian_spy_Skripal__39_s_daughter_Yulia___39_unwittingly__39__carry_nerve_agent_/