Auto Agency in Store for Changes After Missteps

President Barack Obama’s administration is conducting a broad review of an agency that regulates auto safety after it botched a campaign to publicize a potentially lethal air-bag defect, a U.S. official said.

The Transportation Department will determine whether the National Highway Traffic Safety Administration moves quickly enough on threats to public safety, said the official, who spoke on condition of anonymity at a briefing with reporters in Washington.