What Kind Of Critical Press Can You Have If Artists Hold Veto Power?

Many friends and colleagues have stories about a piece that was killed because a living artist took issue with some aspect of it. One colleague even went as far to suggest that we should edit an anthology of essays killed because of the protestations of artists. Others suggested that I should stop writing on living artists. In such a potential minefield, what possibilities remain for academic writing and criticism on the work of living artists (and deceased ones with overly involved estates) when she can register disapproval and silence our work through her curator or editor, or through the withholding of image permissions?