The protests in LA are what everyone feared, and a warning to countries that flirt with populismShe was live on air to viewers back home, her TV microphone clearly in hand, when the rubber bullet hit her. The Australian reporter Lauren Tomasi was the second journalist after the British photographer Nick Stern to be shot with non-lethal rounds while covering protests in Los Angeles sparked by immigration raids. But she was the first to be caught on camera and beamed around the world. There’s no excuse for not knowing what the US is becoming, now that anyone can watch that clip online. Not when you can hear her scream and see the cameraman quickly swing away to film a panicking crowd.It was the scenario everyone feared when Donald Trump took office. Deportation hit squads descending on the kind of Democrat-voting communities who would feel morally bound to resist them, triggering the kind of violent confrontation that creates an excuse to send in national guard troops – and ultimately...