A history of US political violence

<p>President Biden says there is no place for "political violence in America". His warning follows an attack on Paul Pelosi, the husband of US House of Representatives Speaker Nancy Pelosi, last week. Within hours of that attack a series of unsubstantiated claims began circulating on social media contradicting official accounts of what had happened. Those misleading claims then went viral after being amplified by new Twitter chief Elon Musk. </p><p>The Americast team look at how the attack has led to the sharing of disinformation on social media and Justin and Sarah speak to author Josh Zeitz about...