Greece boot out two of their own athletes, Costas Kenteris (200 metres) Olympic/world champion) and Katerina Thanou. In some circles it's said they have been on performance enhancing drugs for a few years, just never caught. Kenteris when in the States, gave a fake address, thus causing suspicion. It's been reported also he faked a motor cycle accident to cover up missing a doping appointment.
It's pretty sad that Britians Darren Campbell would have won the gold in Sydney 2000, if it hadn't have been for Kenteris.
Kenteris doesn't do Golden league, only big sporting events. This kind of in my own beliefs causes suspicion of his big improvements as he has less drug testing against him.
In my opinion every athlete from every Country in whatever event they take part in the Olympics should have a drugs test before the event takes place and after. Like a drugs free passport.
Yet again we have as per usual in life a minority of people spoiling it and bringing it down for everyone else.