Is graffiti art or vandalism? Is graffiti harmful, and is an abandoned property made worse by graffiti? And what does graffiti say about the state of Los Angeles overall? More than a month later ...

Climbing up abandoned, unfinished floors and tightrope walking across balcony ledges, backpacks clanging with cans of alkyd and acrylic, a collective of Los Angeles graffiti artists have ...