re:"In fact, this is a regular challenge in daily life for expats living in Kenya. Ask a taxi driver in Nairobi, "Do you know the way to X?" or the guy at the computer shop "can you unlock my iPhone?" and 90% of the time, the answer is going to be "yes" ... even if they have no clue."
This is very true of most 3rd world countries. You can ask someone do you know how to make blueberry pie and they will say yes, even if they have never seen a blueberry pie. They simply don't say no to westerners when they think there is a possibility of making a buck.
I still don't think doping is widespread in Kenya until I see more proof. However, there is probably enough to write an article about. I am always weary of athletes who interact with European (Spanish, German, Italian) doctors who have no connection to the sport unless it is related to an injury. Right now, there is so much money in marathoning that an athlete can become rich by Kenyan standards after only 2-3 years of winning 2nd tier marathons. That's a powerful enough inducement to corupt someon who doesn't have a lot of other options.