in may 2020, police officers in minneapolis, minnesota killed an unarmed black man called george floyd while they were arresting him. there were weeks of protests all over the world against police brutality and racism. experts said they were worried protesters and police could spread sars-cov-2 to each other. other experts said some of the reasons that the protests were so big was because non-white people were being killed by covid-19 more than white people were, because poor leadership in the covid-19 crisis reminded them of poor leadership about racism, and because the lockdowns shut down workplaces and other things. this meant people had more time to protest.