Videos taken by eye witnesses of federal agent encounters with immigrants in Chicago and elsewhere have shown increasingly tense incidents. Immigrant advocates and observers say they're indicative of a larger…

Health agency staffers describe a week of chaos and continued uncertainty about who still has a job and how the work will get done. To many it's the opposite of…

Migrating wild birds are spreading the virus to domesticated flocks, increasing the risk of eventually seeing a human outbreak. Scientists are troubled by the muted federal response.