WASHINGTON, Aug. 27 -- Rails-to-Trails Conservancy issued the following news release: * * * Complaint Cites Violation of Federal Regulations as Reason to Halt Construction of Exit 4A I-93 Expansion That Will Dismantle Historic Rail Corridor, Creating Safety Hazards for Community * * * Concord, New Hampshire -- The Committee to Save the Derry Rail Trail Tunnel and Rails to Trails Conservancy announced today that they have filed a complaint in the United States District Court in Concord, New H  more