
SFMOMA invited 13 participants to participate in a symposium in a few weeks and to begin the discussion they asked them that question. The participants include Philip-Lorca diCorcia and Trevor Paglen. You can find all the initial responses here or attend the symposium April 22-23.
UPDATE: I just read an interesting addition to this conversation by Paul Graham over on his site. (via). And here is Christopher Rauschenberg's response over at Conscientious to Graham's article.