First, a report on what worries scientists most about bird flu. Then, a look at what's next for AI at Google DeepMind. And, inside the monarch butterfly migration mystery.
The messages were sent the same day Hegseth shared similar details in a separate Signal chat that inadvertently included The Atlantic's editor-in-chief.
More than 100 federal scientists who track bird flu, including vaccine and food safety experts, have been laid off. This comes as the deadly pathogen rips through dairy herds and poultry flocks.