Murray Chass surprised me:

I am philosophically opposed to testing of any kind other than testing for reasonable cause.

I don't believe that people, baseball players, high school football players or anyone else, are obliged to prove they are innocent. If you think I use illegal drugs, state your case to a medical panel and let the doctors decide if I should be tested. Major League Baseball had that kind of program for 16 months in the mid-1980s, but the owners, exercising their right under the agreement, unilaterally terminated it during the 1985 World Series.

I guess it's not fair to assume that because Chass is a bit of a curmudgeon about many things, he'd be the same about steroids. Unfortunately, he probably stands relatively alone in this view.