That's a good question, and the answer is quite involved.
Very briefly, that accident had aspects of technology failure. There was no reason to hit a pedestrian. The technology is beyond running over pedestrians. There was something turned off or something not working. We're not sure what that was and we can't speculate yet until the NTSB sorts that out.
We're not moving quickly enough to anticipate the changes in society, which is what my work is about. I won't say that we should move more quickly with testing in Canada, for example. I do think we should be thinking more about deployment as opposed to just testing, because we're a little bit lopsided in Canada. I'm from Ontario, and Ontario has testing programs, but that testing is about the technology itself. Clearly the technology is not ready; I'm not saying it is.
Also, the safety regulations that were in play in Arizona were very clearly insufficient. There are errors being made technically and errors were made in the regulatory area. I don't think we're making those regulatory errors here yet, but I also think we need to be pushing into further layers of anticipation about the social and infrastructural changes and not just the technology itself. The technology itself is a tiny part of a whole picture.