Arch Coal, based in St. Louis, is one of the world's largest mining companies. Arch's "highest management levels" participated in the "blatant discrimination" against a Kentucky miner who went public with underground safety violations.

That's according to federal administrative law judge Margaret Miller, who ordered Arch subsidiary Cumberland River Coal Co. to reinstate fired whistleblower Scott Howard and pay a $30,000 penalty.

Read more here: http://www.kentucky.com/2012/06/21/2232459/whistleblower-scott-howard-prevails.html#storylink=cpy