WASHINGTON, April 16 -- The U.S. Postal Service issued the following news release: * * * New Forever stamps commemorate battlefields of the American Revolution CONCORD, MA -- Together with the U.S. National Park Service, the U.S. Postal Service today held a ceremony at Minute Man National Historical Park to dedicate its new Battlefields of the American Revolution stamps. "These stamps celebrate the 250th anniversary of our nation and pay tribute to the heroes who fought and sacrificed for A  more