Environmental engineering professor Shelly Miller joins us to discuss the latest thinking on COVID-19 spread indoors, concerns about spread from air conditioning, and her own research for high school groups on spread by musicians. Also, a recent study found that more than 80 global brands like Apple, BMW, Google, and Amazon have been benefiting from the forced labor of Uyghur Muslims in China. We speak with activist Rashan Abbas about China’s campaign against the minority ethnic group.