This year NATO celebrates seventy-five years of collective defense, expanding from twelve founding members in 1949 to thirty-two today.  Panelists discuss the evolution of NATO as it has sought to adapt to geopolitical shifts throughout the years, the challenges it faces in responding to global...

The PBS series Changing Planet embarks on its third year of this seven-year project examining the issues facing the planet’s most threatened ecosystems. The “Coral Special” episode takes us to the Maldives for an in-depth look at coral reefs and the urgent efforts to help them survive climate...