Companies have hit back, saying what the group is doing is bad for road users and is vandalism. waymo says what you're doing is vandalism. how do you respond to that? it's not vandalism, because that requires property damage, and we're not damaging anything. as soon as you take the cone off, the cars are right back to working condition and on their way. they hope to expand across america and beyond. but others here in the city hope they ultimately fail to convince authorities the technology is ready. james clayton, bbc news, san francisco. and we will leave you, this addition of newsday, with ...