On the positive side, I love watching athletes compete. Those with humility and respect for their competitors get extra points in my book. Arrogance, and obvious sense of entitlement cheapen it. Efforts by totalitarian regimes to show that "their" system is the best for propaganda purposes - just demonstrate their hypocrisy with respect to the ideals of the Olympics. The commercialization of the Olympics, where it's all about the money... generally disgusts me. The reality is that to perform at the highest level in almost any sport these days requires lots and lots of money, and this is available mainly to rich countries or countries that use the Olympics for propaganda purposes. And if the objective is to accumulate a high medal count, irrespective of the merits of the individual athletes, then doping, influencing judges, and other dirty tricks are just means to an end. As KenC has noted, with the stakes being high, spending some money to find drugs and techniques that game the system, is probably happening much more than we suspect. In some ways, the monitoring works to find existing known forms of drugs, but it is very difficult to detect patterns of misuse if the protocols manipulate naturally-occuring substances. Blood doping is a rather crude example of this, but I'm sure there are extensive efforts expended to manipulate the body's normal systems of regulation.