In order to expose a system though, you need whistleblowers.

When you notice that politicians and the media are after you, it makes you all the more determined to find out the truth.

Something is swelling up among our athletes. Many of them are frustrated, everywhere in the world, and they are looking for a way out. Either they start doping themselves, or they give up the sport. Or else they stand up and demand that those who have the power to should change the system.

Education and prevention are not enough when there is a culture of fraud.

Being skeptical is part of my job, to question every amazing achievement. That's always there. But I am also capable of turning down the cynicism. The basic idea of sports, the fairness, the competition, remains a beautiful thing.

The Olympics unite the world and inspire us to be a better version of ourselves. The competitions motivate the spectators, and the athletes' message is: You should have more confidence in your ability to achieve things, you should dream more.

I have never heard a doping offender say he felt good about doing it. Not a single one. Some athletes justify their actions by saying it enabled them to afford a bigger house or a better car. But they are never really happy. They know that they are not real winners.