Grave security concerns can arise as a result of demographic trends, chronic poverty, economic inequality, environmental degradation, pandemic diseases, organized crime, repressive governance and other developments no state can control alone. Arms can’t address such...

To those who are gay, lesbian, bisexual, or transgender—let me say—you are not alone. Your struggle for the end to violence and discrimination is a shared struggle. Today, I stand with you. And I call...

With her courage and determination, Malala has shown what terrorists fear most: a girl with a book.