The investigation of the sale of Knight Ridder to McClatchy Co. by the Antitrust Division of the U.S. Department of Justice appears to be widening. Previously, we noted that investigations were taking place in the Twin Cities and the Bay Area. This morning, Eric Pryne of The Seattle Times reports that investigators are looking into the antitrust implications of McClatchy’s proposed acquisition of Knight Ridder’s 49.6% stake in The Seattle Times. McClatchy already owns The (Tacoma) News Tribune, 30 miles south of Seattle. The story quotes a local law professor and the publisher of a Kent, Wash., newspaper as saying they were interviewed by DOJ lawyers about the KR deal.