The killing of George Floyd, the anti-racism protest movement that followed, and the Donald J. Trump administration’s response have shaken the United States and captivated the world. Why It Matters s…

A U.S. president can launch a first-strike nuclear attack at any time and, according to the law, does not need to seek advice first. Some experts think that’s too much power to put in one person’s ha…

Roughly four hundred million people in India use the encrypted messaging platform WhatsApp. Now, the country’s ruling party is trying to force WhatsApp to let the government trace and censor messages…

Space is getting crowded. The biggest challenge is space junk—the debris that results when satellites break up or get shot down. If we aren’t careful, space junk, and space conflict, could cause a lo…

I spoke with Matthew Fuhrmann, associate professor of political science at Texas A&M University, visiting associate professor at Stanford University’s Center for International Security and Cooperatio…