January 17, 2008 3:58 AM PST
The Graffiti Research Lab's L.A.S.E.R. tag pitches itself as "an open-source Weapon of Mass Defacement (WMD) designed to enable graffiti writers, artists, activists, and citizens to communicate in the urban environment on the same scale as advertisers, corporations, and governments." It uses a 60-milliwatt green laser and massive projector mounted onto vehicles. The group plans to execute "stealth projects bombing sorties at screenings, parties, celebrity events and other soft targets of interest" during Sundance.
In this example, New York's Brooklyn Bridge has been L.A.S.E.R tagged.
Photo by Graffiti Research Lab