Amazon's Zoox is running a limited test of robo taxis in Las Vegas, just going between certain hotels. The rides are free, so a friend and I tried it out. At

Amazon's Zoox is running a limited test of robo taxis in Las Vegas, just going between certain hotels. The rides are free, so a friend and I tried it out. At the hotels, the cabs are constantly pulling into spaces that open up at the curb, while others are waiting at the entrance for a spot to open up. While waiting, I saw the look on some cab drivers' faces, and they looked sad and maybe a bit disoriented watching their livelhood disappear in slow motion.