From pathogen research to geoengineering and AI, consequential science is accelerating. Whose hands are on the wheel?

Farmers and health experts say it’s complicated. RFK Jr.’s milk adviser, Mark McAfee, says he’s up for the challenge.

In March 2013, a 27-year-old man showed up at the Fifth People’s Hospital in Shanghai, China, with a high fever and cough. Within 48 hours, he was admitted to the intensive care unit with severe ...