Trade between the world’s two biggest economies has ballooned in recent decades, bringing significant benefits but also perils that have led to calls to rethink the relationship.

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.  

The National Guard is a special part of the U.S. military that answers to both state governors and the president. While it began as a “strategic reserve,” the guard has come to play an important role…