The world has changed. Should the Peace Corps?

The Peace Corps took Patricia Smith, like nearly a quarter-million volunteers before her, far from home. 

Every morning, she rose early to walk the mile to her job, dodging cars on roads without sidewalks to make it to the public health site where she volunteered. The sun came up earlier in her host community than it did at home in Oregon, which required some adjustments. And sometimes, the culture and rhythms of life in her new environment felt very different from home. But none of that bothered Ms. Smith. In...