I figured the issue of privacy should be of interest to at least some of the people here at TFMR.
If you want to know more, consider watching the following talk that Steven Rambam gave at the 2008 HOPE conference titled "Privacy is dead - Get over it":
Or you could download & listen to the audio from a more recent talk/presentation about privacy:
Steven Rambam will also be giving a talk next month at the HOPE #9 conference (http://hopenumbernine.net). Audio from this talk should be posted online soon afterwards.