What is the right response to the shooting down of Malaysia Airlines flight 17 over eastern Ukraine? After the air disaster, five days of acrimony and confusion ensued at the rebel-held crash site. Russia's president is still letting equipment and troops across the border. Can Vladimir Putin really call time on Ukraine's civil war and prevent further bloodshed? What response will emerge from European nations who all do business with Moscow? And is a new Cold War inevitable?
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Donald Trump and Vladimir Putin attend their bilateral meeting at the G20 Osaka Summit in Osaka, Japan, on June 28, 2019. (Mikhail Svetlov via Getty Images)