![](https://i.guim.co.uk/img/media/b6d3181e0601b6372fe54c89a32a168a7f2aee22/0_0_4500_2700/master/4500.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdG8tZGVmYXVsdC5wbmc&enable=upscale&s=d3e63ea77a9654cc4fbbaee7c3f640cf)
Revealed: how a Kenyan runner turned undercover agent to lift the lid on dopers
A winter’s day, 2015, New York. Investigator Victor Burgos turned over the conversation he was about to have in his mind. In the next minutes, he was either going to recruit an ally in the fight against anti-doping or have a hostile, frustrating encounter …