In the latest in a series of challenges to consummated mergers by federal antitrust agencies, on May 10, 2011, the U.S. Department of Justice (DOJ) filed suit challenging George's Inc.'s acquisition of Tyson Foods' Harrisonburg, Va., chicken processing plant, alleging that the acquisition eliminates substantial competition between the two companies for the procurement of services of chicken growers in the Shenandoah Valley area. The transaction, which was publicly announced on March 18, 2011, was not reportable under the premerger notification requirements of the Hart-Scott-Rodino Act. However, DOJ raised antitrust concerns and sought information from the companies on the potential competitive effects of the transaction before the deal was closed on May 7, 2011.