Pyrotechnician Randy Weinholtz, of Philadelphia, Pa., lowers an eight-inch firework shell into a mortar tube on a barge on the Charles River, in Boston, Monday. Weinholtz and several other crew members have been setting up launch pods and running wires for the thousands of fireworks that will illuminate the sky on July Fourth over the river. The display will be televised nationally. (AP Photo/Steven Senne) Steven Senne