Investigators fear the shooting is part of a surge in inter-ethnic tensions between Chechens and the Ingush. Vladimir Putin is facing a potentially serious outbreak of inter-ethnic violence, after a former Chechen and Ingush politician was seriously wounded by a gunman at his home just outside Moscow. Sherip Alikhadzhiev, an aide to Russian State Duma Deputy Vladimir Shamanov, was rushed to hospital with two bullet wounds and is recovering in intensive care. Russia's Investigative Committee said the gunman fired at least four times at the victim’s house in the village of Lapino near Odintsovo, before fleeing the scene. Mr Alikhadzhiev...