NPR's science podcast Short Wave talk about how ultrarunning affects the body, the trend of intermittent fasting and how to protect people's mental health when they talk with chatbots.

NPR's Mary Louise Kelly speaks with Alexandra de Hoop Scheffer, German Marshall Fund president, ahead of the Munich Security Conference.

U.S. Secretary of State Marco Rubio delivers a keynote speech at the annual Munich Security Conference; European stakeholders are reassured but still wary.

N.C., co-chairs of the bipartisan Senate NATO Observer Group, sit down with NPR's Mary Louise Kelly at the Munich Security Conference.

MARY LOUISE KELLY, BYLINE: Hey. Good morning, Leila. FADEL: Good morning. It sounds very busy there. Where exactly are you and what's the scene?

NPR's Mary Louise Kelly speaks to Chrystia Freeland, former Canadian Deputy Prime Minister and current economic adviser to Ukrainian President Zelenskyy, about Ukraine.

NPR's Mary Louise Kelly and Correspondent Rob Schmitz discuss Germany's far-right Alternative for Germany, or AfD, at to the Munich Security Conference.

NPR's Mary Louise Kelly speaks with Sky and Amanda Roberts, family members of the late Virginia Giuffre, now that the former Prince Andrew has been arrested by police in the U.K.

What makes a good spy - training, experience, being able to blend in easily, nerves of steel? Of that list, the lead characters in the new Peacock series "PONIES" possess just one, and actually, ...

In the past year, President Trump has often threatened or used military force abroad. Yet he also likes to present himself as the world's leading peacemaker, and that includes his new plan for a ...