Worker Punctured Pipe in Mass. Blast

A natural gas explosion that injured more than 20 people and damaged 42 buildings in Springfield's entertainment district was blamed on a utility worker who accidentally punctured a high-pressure pipeline while looking for a leak. The president of the gas company involved says the employee followed proper procedure and protocol. State Fire Marshal Stephen Coan on Sunday said the Friday night blast in one of New England's largest cities was caused by "human error." He didn't name the...Full Story