Could this make sport safer? Tech founder Peter Thiel is backing the Enhanced Games, at which athletes will be allowed to take any drugs they want to.
Billionaire to launch drug-friendly Olympics
Elite cheats: The organisers claim that 44% of today's athletes already take banned drugs. Glossary
Olympic Games - A major international multi-sport event held every four years.
Persuade - Convince. Try to change someone's mind or make them do something.
Athletes - Somebody who competes in sports events.
Encourage - Urge, or persuade someone to do something.