and you may not know david gray by name, but you probably recognize his hit single "babylon."e'll tell us all about his greatest musical influences in tonight's "playlist." for what m. introducing blueprint. blueprint is free and only for chase customers. it lets you choose what rchases you want to pay in full to avoid interest...with full pay. and those you split... you decide how to pay over time. if having a plan matters. chase what matters. create your own blueprint at chase.com/blueprint. crime in new york city has dropped 27% since 2001. response times in madrid... ...have been cut by 25%. cities all over the world are getting smarter... ...and safer. every time an emergency happens... ...data is generated. smarter cities fight crime... fires... flu outbreaks... ...by capturing the data. detecting the patterns. sharing it across departments. ...responding to emergencies... ...even preventing them. making cities safer. that's what i'm working on. i'm an ibmer. let's build a smarter planet. >> announcer: "nightline" continues from washington with terry moran. >> where does