according to these news:
http://www.nysun.com/article/31458city had to undo 16 million square feet of "urban scrawl" despite all
the promises and hailed victories over the "vandals"...................
a comparable problem German city of Cologne facing with same
outcome.......
A.Thiel (coordination),intl.work-group on graffiti-research
http://www.graffitiforschung.tk