Big Dig possible defect count quadrupled (AP)

BOSTON - Inspectors on Thursday quadrupled the number of possible ceiling bolt problems in a Big Dig tunnel where a woman was crushed by falling concrete, adding to the urgency of the growing debate over who should ensure the safety of the troubled project. The Massachusetts Turnpike Authority said inspectors found additional bolt assemblies that were separating from 3-ton concrete roof panels, raising the number of potential defects to 240, compared with previous inspections that found 60 defects ...