NBCUniversal July 4, 2018 12:01 pm USS Constitution Fires 21-Gun Salute Off Castle Island The USS Constitution, the world’s oldest commissioned warship still afloat, made its traditional Fourth of July trip to Castle Island where it fired a 21-gun salute. US & World Videos 1:56 20-year-old killed, teen critically hurt in Northbridge double stabbing 1:50 Man found shot to death in Taunton shed 1:43 Authorities respond to incident in Northbridge 0:49 Bowling alley reopens 6 months after mass shootings in Lewiston, Maine 2:27 Mother speaks out after school shooting threat in Milton
