MULLEN: "Our truthful answer is we think that we're the leader. We think that our camera vision of a thousand meters allows us to do things that the competitors can't. Our competitors, at least to my knowledge, haven't shown that. I did see some of the competitors' stuff when I was at the DOT. So, my view [is] if we're not the leader, we're certainly in the forefront." TuSimple's public debut (Photo: TuSimple)