>> look, we hired anton delucas to do a complete investigation and we'll learn from that. we definitely are moving to a culture focused on the consumer, that is focused on the customer and focused on high quality and safety and that's my direction and what we're doing today. >> the known families and consumers deserve more specific answers to you today. there were many questions you could not respond to. don't they need more now from you? >> as soon as i have the information, that's why we launched an internal investigation. remember, we are looking at something that happened over more than a decade and it's a very complex situation. we need to make sure we have the facts and we won't sacrifice accuracy for speed. when we have that information, we will share with the regulators, with the legislators, with the customers. we will do that. >> could you say more today? >> i could not. >> ms. barra, you were head of quality back in 2011. for that you were head of engineering. how could you not have been aware of the defect? if you really weren't, are there other defects you are