Ghassan Hassrouty was working with his colleagues at the port’s grain silos. Sarah Copland, an Australian UN employee, was feeding her son Isaac, 2. And then, it’s zero hour, the moment the blast tore through the city on August 4, 2020. This episode is the third of a four-part investigation into the 2020 Beirut port explosion. It tells that story through witness accounts of people who were there.

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