•Should doping in sport be legalised?
Absolutely not. Sport is a physical activity (a game or competition) wich involves training and practice subject to rules. Drugs legalisation go against the basic and original concept of Sport that is based on the human effort and hability.
•Will it ever be possible to stop athletes breaking the rules to win?
It will be very difficult. We can make some changes to avoid this problem in future like including sport education about this subject in schools and the improvement of laboratory technical analisys but at the end the athlete is the unique responsible.
•Are athletes who take drugs cheats or are they victims?
In my oppinion they are cheats and victims of his own decission.