Russian journalist Mikhail Zygar on resisting Putin

Tuesday's deadly missile explosion in Poland marked the first time a NATO country was directly hit during the conflict and is a reminder of the potential risks of spillover. Russian journalist Mikhail Zygar is following developments in the war closely; he now lives outside Russia and is founding editor of the independent news channel TV Rain. Resistance against Putin takes many forms, and he joins Christiane in London to explain why going public with his own gay marriage was an act of protest. 

Also on today's show: Former US Vice President Al Gore; actor Hugh Bonneville.

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