Book excerpt: The act of bearing witness can reveal much, but what about the figure of the witness itself? As contemporary culture is increasingly dominated by surveillance, the witness--whether artist, historian, scientist, government official, or ordinary citizen--has become empowered in realms from art to politics. In Seeing Witness, Jane Blocker challenges the implicit authority of witnessing through the examination of a series of contemporary artworks, all of which make the act of witnessing visible, open to inspection and critique.