CEO Mary Barra on how GM is revving up electric vehicles 07:30. During her ten years as CEO of General Motors, Mary Barra has made big investments in software and driverless cars.

How Mary Barra led GM through its 2014 recall scandal and changed the company's culture. General Motors was faced with a huge crisis just months into Mary T. Barra's tenure as CEO.

GM's new CEO, Mary Barra, is facing the ultimate crisis -- people died in GM's cars. She's meeting the awful problem with courage and honesty.