WASHINGTON (AP) — A Senate panel plans to delve deeper into General Motors' delayed recall of millions of its small vehicles.

They plan today to ask GM CEO Mary Barra about how she's changing a corporate culture that allowed a defect with ignition switches to remain hidden from the car-buying public for 11 years.

And the Senate Commerce subcommittee on consumer protection also plans to ask GM General Counsel Michael Millikin what role the company's legal department played in the mishandled recall.

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