The world is talking about the film, Oppenheimer. What does it tell us about the perpetual nuclear arms race.

It's easy to take for granted that the US dropped an atom bomb on Japan in August 1945.  It shifted forever, the global weapons landscape - and still does today.

In this episode of Global Truths, Dr Keith Suter compares the weapons of 1945 to weapons of today, and what it means for the future of water - and the future of mankind.

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