Safety and certainty in oil lie in variety, and variety alone.

I'm increasingly inclined to think there should be some regulatory oversight [over AI], maybe at the national and international level just to make sure that we don't do something very foolish.

If you're not concerned about AI safety, you should be. Vastly more risk than North Korea.

Self-driving cars are the natural extension of active safety and obviously something we should do.

My grandfather was an autoworker, and I have a weapon he manufactured to protect himself from the company that he would carry to work. It's a big iron pipe with a hunk of lead on the head. I think about how far we've come as companies from those days, where workers had to protect themselves from the company.

Beyond violating our laws, visa overstays, pose - and they really are a big problem, pose a substantial threat to national security.