I'm from Cottage Grove area, in fact my childhood dentist was there. None of this is news, it is a terrible legacy, Cottage Grove was not the only area contaminated, much of the entire Eastern Twin Cities suburbs have problems in the water with ongoing cleanup efforts. 3M is a chemical company, in essence. How much cancer did it cause? I don't know...some. While many Americans don't agree that climate change is an important issue, I think it's well accepted that just dumping chemicals is bad. I think the issue is whether it's in one's own back yard or not.