WADA: caffeine is not able to enhance performance

The Australian Olympic Committee (AOC) considers that caffeine should belong to banned medications of the World Anti-Doping Agency. The president of the AOC John Coates claims that caffeine promotes addiction to sleeping pills and tranquillisers.
It is known that the Australian swimmers who took part at the 2004 and 2008 Olympic Games applied sleeping pills Stilnox. Thus, John Coates confirms that usage of caffeine led to usage of Stilnox.
Stilnox is usually sold under the commercial name Zolpidem. It is a sleeping remedy which is used in case of insomnia.
The president of AOC notes that sportspersons take caffeine in order to increase performance. Usage of this substance causes insomnia. Thus, sportspersons have to take sleeping pills in order to treat insomnia.
 The AOC and Swimming Australia desire to prohibit usage of caffeine. It is their response to the disgraceful case linked with Grant Hackett. A physician recommended taking Stilnox to this swimmer at the time of the 2003 World Championships. As a result, Grant Hackett became addicted to this sleeping remedy.
Grant Hackett is a celebrated swimmer. He won many competitions, including the 2000 Sydney Olympics, the 2004 Athens Olympics and the 2008 Beijing Olympics.
Alan Thompson, the former coach of the Australian Olympic Team, has also claimed that administration of Stilnox is widely spread among Australian swimmers.
Stilnox was never on the list of prohibited medications. Anti-doping agencies didn’t conduct tests to disclose usage of this medication.
But as for caffeine, previously it was prohibited by the WADA. But since it became widely spread and consumed in society, it was excluded from the list of banned preparations.
John Fahey, the president of the WADA, notices that the WADA made the right decision and excluded caffeine from list of prohibited preparations. He claimed that caffeine would not be included in the list of forbidden substances again.
Although a lot of experts confirm that caffeine is a performance enhancer, John Fahey contests this argument. He affirms that caffeine doesn’t impact on performance. John Fahey concludes that no any scientific literature proves capacity of caffeine to increase performance.