Interesting. My bets:
4 of them probably are from Kenyans (2:07/2:09 marathoners I guess)
2 Chinese racewalkers
6 from Eastern Europeans (marathoners and racewalkers)
4 from "sacrificial lamb countries" (Morocco, Turkey, India, Qatar)
1 South American (Brazilian probably...they have good distance runners)
1 AMERICAN (and here we go...I think the failed test will be from an Olympic Trials qualifier)
I think there will be only 1 popular athlete...but I don't know...Makhloufi??mmm...if Makhloufi tests positive...all the Jama Aden training camp (Hamza Driouch, Abubaker Kaki, Musaeb Balla,Ayanleh Souleymane, Mohamed Al Azemi) will be spotted with guilt allegations.Probably IAAF will go for one of the "B" runners from that group, as a warning for Makhloufi)