The United States accepts hundreds of thousands of foreign workers each year in a variety of industries. Persistent U.S. labor shortages and accusations of abuse have reenergized the debate over the scale of these programs.

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

The sprawling U.S. water system is central to the nation’s economy, but chronic underinvestment, increasing demand, and the consequences of climate change have revealed the system’s weaknesses.