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On April 26, 1986, reactor block four of the Chernobyl nuclear power plant exploded. It was the nuclear super-GAU. Around a hundred times more radioactivity than in the atomic bombings of Hiroshima and Nagasaki was released and the whole of Europe was contaminated. The reactor site has been a major construction site since then and securing the ruins is a major challenge. Christoph Wanner accompanies the nuclear physicist Heinz Smital through the restricted area. ???? More documentaries & reports http://bit.ly/WELTdokus ???? Subscribe to the WELT YouTube channel http://bit.ly/WeltVideoTVabo #Chernobyl #AtomicReactor #Documentary