Doping remains to be integral part of sports

Recently Alan Abramson wrote an article where he noticed whether tests conducted by the World Anti-Doping Agency (WADA) were efficacious.
The WADA conducts more and more tests for steroids and other related preparations every year. It seems that those that administer steroids are caught. One may think that the world of sports and professional bodybuilding will be soon cleansed from application of forbidden preparations. For example, numerous tests for prohibited preparations have been conducted at the 2012 Summer Olympics.
But some questions appear here. Are these tests sophisticated enough to catch any person that dopes? Are these tests efficacious?
Let meditate over results of certain tests. In 2010 the WADA published statistics according which 258,267 samples were analyzed by 35 WADA-accredited labs. Out of these samples 4,820 results represented atypical findings. About 60 % of positives indicated about intake of steroids. Many positives were for cannibinoids. 10 % positives were for marijuana. As you see, only 60% out of those who used forbidden medications applied steroids. Is it real? Don’t manifest the results of the tests that the WADA doesn’t do the job properly?
Dick Pound, the former president of the WADA, considers that at least 10 % of athletes that participated in the 2012 London Olympics administered steroids. He affirms that those consumers of steroids that are not clever are caught by anti-doping agencies. He also confirms that a sportsperson that has been caught administering banned preparations will fail an IQ test. He adds that just unwise sportspeople can’t avoid detection.
Thus, when you read that the WADA has conducted numerous tests to make sports clean, think whether these affirmations are true. Is able the WADA to make competitions fair? Why does the WADA note about number of tests?
It seems that the WADA just wants to convince people that the job is done suitably. The WADA wants to secure future funds. It is the reality.