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NTSB releases initial report on Maryland crash that killed 6 highway workers

Credit: AP/Jerry Jackson

NTSB releases initial report on Maryland crash that killed 6 highway workers

Partial DC trench collapse injures 4 construction workers

Partial DC trench collapse injures 4 construction workers

More construction workers

NTSB releases initial report on Maryland crash that killed 6 highway workers

NTSB releases initial report on Maryland crash that killed 6 highway workers

Partial DC trench collapse injures 4 construction workers

Partial DC trench collapse injures 4 construction workers

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