Everyone is/was on 'roids. Every sport has/had it, the problem was the MLB Players Union wouldn't allow the testing because they knew steroids were so prevelant. Then congress and the commisioner finally forced them into a testing program and now everyone is so suprised they were all cheating.
Some people say: "Can you blame them?" Well ofcourse you can. They were still illegal drugs, regardless of whether they are banned. Would people be getting a pass if everyone was doing heroin to make them faster?