Headline: Koch brothers explore takeover of liberal newspapers in key regionsLink: http://www.bizpacreview.com/2013/04/22/koch-brothers-explore-takeover-of-liberal…Publication Date: Monday, April 22, 2013Primary Source: BizPac ReviewNon-Cato Author: Tom TillisonType: new media postFormat: New MediaNature of Mention: mentionedScholar: CatoResearch Area: Government and PoliticsSubjects: the Koch brothers