His name was Chuck Stoddard and here's what he did.
Stoddard put his career and reputation at stake in the late 1960s when confronting the Reserve Mining Co. in Silver Bay, Minn., on Lake Superior. Mining officials and some Minnesota politicians tried to suppress a report by the Minnesota natural resources agency that found the company was dumping up to 67,000 tons of taconite tailings daily into Superior.
Stoddard was so confident in the report, and in the danger of dumping these asbestos-type fibers into Superior, that he leaked the report to the press. Federal courts eventually ruled against Reserve Mining, fined it more than $1 million and forced it to dump its wastes at on-land disposal sites.