anything to add, matt or dan? you like heated runways? >> sounds good to me. we don't need them in san francisco. >> yeah, do you. of course you do. you need people to come to san francisco. >> in other words, what cliff is telling you, if we get a half an inch of snow tonight in washington you may not get back to san francisco so you should be willing to pay for that. okay a question very far in the back there. britney, please. >> hi, tracy gordon. the previous panel and this one to some extent have punted on the subject of politics. infrastructure is very important. i have two pet ideas to put forward to the panel and i wonder how you would react to them. the concept that mayors don't run on infrastructure, i don't understand. if the value of infrastructure is in property, as ed mentioned with sky scrapers in hong kong, they should say great, and homeowners should be chomping at the bit to award them at the ballot box. i don't understand why there isn't more disclosure and maybe federal government could lean on state and local government to do that. a rule t