Today on Boston Public Radio:

– Medical ethicist Art Caplan talked about news of a promising COVID-19 vaccine from Cambridge-based Moderna Therapeutics, and his writing in 2016 on "The End of Civilization and the Real Donald Trump.”

– MIT economist Jon Gruber talked about President Trump’s attempts to limit immigration during the COVID-19 pandemic and highlighted the ways immigrants fuel the U.S. economy.

– CNN analyst Juliette Kayyem talked about the surge of COVID-19 across the U.S. and the ongoing question of how to safely reopen schools.

– Mass. Sen. Sonia Chang-Diaz broke down a new police reform bill, which passed in the state Senate early Tuesday morning.

– In light of tax day, we opened lines to ask listeners: has the COVID-19 pandemic made you more or less likely to skirt the rules when filing?

– Journalist and naturalist Sy Montgomery called in to talk about the reopening of the New England Aquarium and how to tell if your dog is suffering from heat stroke.