At the United Nations General Assembly this month, President Obama called on each of the world's countries to shoulder its share of responsibility for a "global response to global challenges." Few of these challenges are more daunting or imbued with possibility than the global demographic shift taking place in metropolitan...

Fifteen years ago, the media briefly focused on the nightmarish conditions in the large housing developments of an Anacostia neighborhood in Southeast Washington D.C. named Washington Highlands. Because of a federal program to demolish distressed public housing and rebuild mixed-income, mixed use housing in its place -- HOPE VI --...