The world's greatest sprinter says WADA is doing all it can to ensure clean sport.
Anti-doping bodies must become more accountable to the athletes they serve.
Nils Usakovs has been using the positive test for publicity.
It is a substance meant for patients with heart conditions.
Tennis player Maria Sharapova has admitted using meldonium under a different name to treat an irregular heartbeat.
The tennis world No. 6 faces a provisional suspension on March 12.
The sportswear giant has sponsored the Russian for over a decade.
Shin Asakawa believes sport authorities "need to be very tough on Russia"
The three men will be suspended with immediate effect from their positions in Athletics Kenya and the IAAF
The recent explosive report on Russian doping came from whistleblower testimony.