  The paradigm for AGN unification is reviewed, in terms of its optical
manifestation as obscuration in the equatorial plane and its radio
manifestation as relativistic beaming of the jet emission. Within this
paradigm, observed AGN properties depend strongly on orientation angle. The
predictions of unification are commensurate with the local numbers of AGN of
various types. The outstanding question concerns a possible population of
obscured AGN at high redshift, which are thought to produce the X-ray
background, although few are observed directly. We describe early results from
GOODS, an HST-SIRTF-Chandra multiwavelength survey, which has as one of its
principal goals the search for such obscured AGN.
