I think he asks permission when it suits him. Given his profile as an artist, I'd imagine he mostly wants to work on projects of the sort of scale that require

I think he asks permission when it suits him. Given his profile as an artist, I'd imagine he mostly wants to work on projects of the sort of scale that require permission from an organisation of some sort. I don't think he has an objection to tagging the streets of London still, but his most high-profile works now would be impossible without permission. I'm still impressed he managed to do stuff like his Bristol exhibition with the knowledge of only three staff members at the Museum http://news.bbc.co.uk/local/bristol/hi/people_and_places/arts_and_culture/newsid_8097000/8097022.stm http://news.bbc.co.uk/local/bristol/hi/people_and_places/art...