Russian President Vladimir Putin said Thursday that Russia was being threatened by German tanks, like during World War Two, speaking at an event in Volgograd, formerly Stalingrad, marking the Soviet victory over Nazi forces in the city. 'It's unbelievable but true. We are again being threatened by German Leopard tanks,' Putin said, adding that Russia had an 'answer' to any country that threatened it. Putin appeared to have brought his 'nuclear football' to Volgograd. Aides were seen close to the dictator carrying two black bags. Observers believed one was a fold-up shield to protect Putin in the event of shooting,...