How moving to the US helped marathon champion Hellen Obiri achieve two dreams at once

By Ben Church, CNN (CNN) — Even as one of the best athletes in the world, Hellen Obiri says she’ll still be nervous lining up at the start of this weekend’s London Marathon. It’s incredible, though, that the Kenyan would have any doubts at all. After all, the 36-year-old is a double world champion in