Its a cold war weapon, It was meant to kill and sow terror. :-O. . If this report is true. IMO,All UK political party's and UK Allies should coordinate response against the nation who produced it,used it on & against UK or even lost some of it.which in Russian case very doubtful.This is IMO bigger than party politics. A cold war CHEMICAL weapon that is indiscriminate has been used on UK territory & in built up area.