The scrutiny had boxing officials last week longing for a clean, controversy-free competition, knowing the consequences should there be yet another fiasco like the Seoul Games or like last year's world championships.
And surely there are people out there who watch because golfers are clean-cut, controversy-free and genteel.
Supporters of Norris admitted to being worried and said he would have to "clean up" the controversy if he hoped to secure a nomination.
Although both Roberts and her main opponent, Democrat Joe Colgan, signed a clean campaign pledge, controversy arose over advertisements run by outside sources.
Such a bomb would be "enough to make a mess that would cost tens of billions of dollars in cleanup costs and economic disruption, with all sorts of controversy over how clean is clean, how will people go back there", he said.
There's controversy surrounding "clean" or "green" tech investments.
"He is a polite, humble and professional man who lives a clean life with no controversy and a good family around him.
Despite the scrutiny of that decision, Platini insisted that under his leadership Fifa would make a clean break from past controversies, "restore its image" and become less about political deal-making.
And the men who worked at the Governor's Mansion, including four murderers whose pardons attracted the most controversy, now have clean records.
Those clean industries were welcomed into town without controversy because, unlike St .Lawrence Cement, they posed no threat to the health or character of our area.
The situation in Japan, however, underscores controversy around designating nuclear as a clean energy source.
