Who is drug testing Russia's athletes, now that they have returned to international competition?
DW has found that three-quarters of Russia's weightlifting team had no independent out-of-competition testing before this year's world championships, despite the country's doping history.
<p>DW has found that three-quarters of Russia's weightlifting team had no independent out-of-competition testing before this year's world championships, despite the country's doping history.</p>