Comprehensive immigration reform has eluded Congress for years. With border crossings at a record high, how are policymakers responding?

It is crucial to learn the facts about how COVID-19 emerged to prevent future outbreaks. But China is rebuffing calls for further investigations focusing on Wuhan.

The world is inching closer to eradicating polio, but armed conflicts and opposition to vaccines stand in the way of finally eliminating the disease.