"There was a thermal runaway in the battery, multiple cells where we saw uncontrolled chemical chain reaction, and those features are not what we would have expected to see in a brand-new battery in a brand-new airplane."
Do the 787's problems mean Boeing's first-time use of lithium-ion batteries in planes was a mistake:
"I would not want to categorically say that these batteries are not safe. Any new technology ... there are going to be some inherent risks. The important thing is to mitigate them."
When the NTSB's tests on the 787 batteries will be done and the planes can fly again:
"We are probably weeks away from being able to tell people, here is what exactly happened and what needs to change."
Reports she is President Obama's choice to become Transportation secretary:
"I feel very privileged to have the job that I have now.... So I am going to be focused on that."
Outlook for auto safety:
"Collision avoidance technology ... will be the future of life-saving devices – vehicles that can prevent, detect, mitigate, and minimize accidents."
Continuing problems with commercial bus safety:
"This issue has been on our most-wanted list.... We see fatigued drivers, we see vehicles that are not maintained properly, we see problems in the crash worthiness and design of these buses ... and in the end we see companies that are not put out of service until after they have a fatal accident."