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.  

Colin Powell’s extraordinary career as a soldier-statesman provides a model for how to live one’s life in the public arena at a time few such models can be found.

Alone among US President George W. Bush’s senior advisers, Colin Powell did not push for the costly, ill-advised Iraq War, and it would be misreading history to hold him responsible for it. He remain…