Dangerous path

A group of runners take part in a morning training session in Eldoret, Kenya, on May 15. In a region where the competition is so intense, the potentially life-changing lure of banned substances is obvious. — NYT

THOUSANDS of feet above the Great Rift Valley that runs through East Africa, the small city of Iten, Kenya, calls itself the Home of Champions.

It has long produced and attracted world-class running talent, its high altitude and red dirt roads a training ground for thousands.