The Drone That Will Change Graffiti: An Interview with KATSU. KATSU is an artist and a vandal and a clever hacker too. His work pushes our idea of what can be achieved with the graffiti artist’s limited tool-set. Having established himself as one of New York City’s most prolific and imaginative taggers in the 1990s, he garnered admiration from the arts community (and condemnation from the authorities) when he pioneered the fire extinguisher spray can, which has permitted him to expand the scale of his art by orders of magnitude. He famously demoed it at “Art in the Streets,” a 2012 show at the the Los Angeles Museum of Contemporary Art, when, without invitation, he left his multi-story calling card on the side of the museum. Source