Peter Roby is the director for the Center for the Study of Sport in Society at Northeastern University. He played basketball for Dartmouth.

"This whole issue calls into question the integrity of sports. The last thing they want people to think is that they can't trust the results. That the performances they're seeing on the field are not truthful and not fair.

"It's not necessarily that they are guilty, but it's real difficult for baseball to suggest that everything we see on the field is real.

"These athletes are considered icons. That they are alleged to have used steroids or that they are using sends a really dangerous message to kids — maybe the rewards are worth the risk.

"We have to start at a fairly early age. We have to appeal to kids about the need to do things honestly and with integrity.

"The other thing we need to do is create a zero-tolerance policy. Like the Olympics. If you're caught once, you're suspended for two years. The second time it's a lifetime ban. There are a lot of consequences. You better be prepared not to have a livelihood.

"There are enough people out there doing it the right way. To suggest that you can't recover is to suggest that everybody is being painted with the same brush. There is a lot more steroid use than people are willing to admit, but if technology can catch up with attempts to circumvent the rules, if we can put some real teeth into the penalties, we can be comfortable about integrity and fairness in sport.

"I don't think by any means we should throw our hands up in the air. Like — 'We can't control it, so let's just allow it to happen.' We should never get to the point where we feel like it's not worth the effort."