revitalize was g 20. leaders and bure kratz from 20 nations come together in one city to talk about the economy. when they choose pittsburgh the mayor was excited. >> they see our beautiful skyline and great rivers. >> bob casey told residents the event would be an economic boom. local businesses were told g 20 would bring in thousands of visitors. >> you are all set. >> tim toll vich and megan lindsay own frank air restayed open lates for the thousands of new customers. they didn't come. >> it was completely dead. nobody was here. >> fewest customers we ever had. >> i thought it was going to be a good thing at first. >> where were all of those guests the city promised? >> here are somsome. >> a thousand state troopers. >> i here by declare this to be an unlawful assembly. >> no one sees a tank and says i will go downtown for lunch. >> next year's g 20 will be in