Graffiti often draws negative reactions but Labor Day weekend the city embraced spray-can murals. Cleveland Public Art hosted the Second Annual International Graffiti Arts Festival. The idea is to give writing on the wall a new name - "art" instead of "vandalism." But for serious aerosol artists, graffiti already has that connotation. ideastream's Renita Jablonski got a taste of graffiti passion this week. She spent time with some local artists at one of their favorite LEGAL spots, and brings us this sound portrait.