. >> i also want to talk to you about tech, san tefrancisco's relationship with a tech company fuelinghe economy. that's all good. we're seeing an upsurge in jobs. but companies owe the city in back taxes. why have you not been more aggressive in going after that? >> our treasurer, tax collector has a very strong policy not discussing people's tax liabilities. we know there are taxes owed. i've taken a strong position, and everyone else i spoke to pay your taxes, whatever they owe, and get into a system where you don't owe it. now, having said that, there's still delicate discussions going on about not changing neighborhood character. they agreed to pay all their taxes going forward and it's been a popular system. >> you sent someone to the treasurer to urge him not to collect the back taxes, 3, 3 1/2 years ago. >> i'm not sure where you got that, scott. >> the chief technology officer of the city didn't go? >> i don't think that ever happened. >> have you publicly urged them to pay back taxes? >> oh yes. i've made statement after statement. we think the back taxes should be paid. but