Nat Herz World Skier Jessie Diggins becomes first American to win an individual world title Nat Herz Jessie Diggins became the first-ever U.S. skier to win an individual world title Tuesday in Slovenia. She's already the most decorated American cross-country skier ever — even before this latest win. Listen • 2:57 Healthcare 'We Don't Feel Forgotten At All': Alaska Fires Up COVID-19 Vaccine Rollout Nat Herz