but exempted foreign athletes who strongly refused to be the target of the drug screening.
Perhaps there's more to it than that, but as we've seen time and time and time and time again in North America, baseball players can't be trusted to be clean, and they really have no leg to stand on with their objections.
As the Herald and the Joongang Ilbo both point out, Daniel Rios is an example in Korea. He had five decent before recording 22 wins in 2007. He then signed with Japan, and tested positive for anabolic steroids in 2008.
This isn't related, but I was interested to read East Windup Chronicle demonstrate that the papers can be just as ignorant when it comes to covering foreign players as when they're covering foreign teachers.