Terror at Bondi Beach: What response to Australia's worst anti-Semitic attack?

It was the worst of humanity, and the best of humanity. What kind of a father-son duo decides to go shooting at a gathering that's come together to celebrate the Jewish festival of light? We ask about the motives and circumstances of the Bondi Beach terror attack, and the heroism of a Syrian-born street vendor who took bullets to the shoulder while disarming one of the gunmen.

Read more'Genuine hero': Bystander tackles alleged gunman during Bondi Beach mass shooting

The amateur video of the incident illustrates not a clash of civilisations, but a clash of selflessness and nihilism. Nihilism and the merchants of hate from all sides seem to thrive in this digital age, where messages of hate seem to travel much faster than messages of love. What's the answer?

Produced by François Picard, Rebecca Gnignati, Juliette Laffont, Ilayda Habip, Andrew Hilliar.