Since antiquity people have harnessed sound as a weapon, and the practice continues – in new high-tech ways – today.
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Police do use ‘sound cannons’ at protests – but it’s unlikely they’re responsible for the injuries claimed by some protestors.
Over the past 50 years, protesters’ voices have found power in unison. But activists and onlookers have increasingly been exposed to new sounds that aim to shatter rather than gather the crowd.
A mystery disease that struck US personnel in Cuba and China triggered fears of a sonic weapon. But two experts argue that this is just about leveraging a medical mystery for political gain.
US diplomats in Cuba and China have shown symptoms of brain injuries.
