Preparation for WW3 worst-case scenarios could be stepped up after fresh threats were levied against the UK by Vladimir Putin's key puppet Dmity Medvedev, with concerns that the Russian president could order a strike on a critical sector.Medvedev, leader of the main pro-Putin political party United Russia, and deputy head of the powerful Kremlin security council insisted the West should take seriously Moscow’s regular threats about nuclear war. “These are not hints,” he said in an interview with Vedomosti newspaper.Prime Minister Andy Burnham has been warned Britain faces an “inevitable” Russian attack on its defence and security in revenge for...