Officials at the Big Dig's top contractor, as well as state employees who work for the agency that manages the $14.6 billion highway project, repeatedly hindered independent engineers and attorney's investigating tunnel leaks by denying them documents and data, according to the retired judge, Edward M. Ginsburg, who led the probe. "They were all married to each other," Ginsburg said. As a result, each entity was blind to the other's faults, he said. A spokesman for the Turnpike Authority said there was never any attempt to withhold information from investigators.
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