Fascists Among Us by Walkley Award–winning writer Jeff Sparrow is the first book to trace the Christchurch massacre’s roots. Jeff untangles the history of the far right to show how fascists have adapted to 21st-century politics, and argues that the mosque killer represents a frightening new phenomenon: decentralised right-wing terrorism that recruits by committing atrocities, feeds on itself and spreads from country to country. Jeff speaks with Antony Loewenstein about his compelling, urgent call for a new response to an old menace.