Locating 2,000 needles in a haystack

摘要

Billboards so pervasively dot America's landscape that it seems as though anyone who wants to express their creativity can erect one. But outdoor advertising is subject to state regulation, and it falls on officers like Colorado Department of Transportation's Jerry D. Miller, RE., to see to it that they are being compliedrnwith. Driving around Denver, it doesn't take long to see that code enforcement is necessary.