The XMM Deep Survey in the CDFS
  The Chandra Deep Field South (CDF-S) was observed by XMM-Newton for a total
of about 3 Ms in many periods over the past decade (2001-2002 and 2008-2009).
The main goal of the survey was to obtain good quality X-ray spectroscopy of
the AGN responsible for the bulk of the X-ray background. We will present the
scientific highlights of the XMM-Newton survey and briefly discuss the
perspectives of future observations to pursue XMM deep survey science with
current and forthcoming X-ray facilities.
