This is good clean fun.
   Watch: [1]https://www.youtube.com/watch?v=xipI-0HU010
   Kurzthese:
   Secret surveillance programs have metadata too. The same people and
   companies that operate secret surveillance programs also publish
   details about their work on the open internet. We can use this data to
   watch the watchers.
   Beschreibung:
   “Proficient in Microsoft Word and Xkeyscore” and similar phrases are
   surprisingly common on LinkedIn profiles. NSA contractors, military,
   and others involved in the surveillance state post seemingly coded and
   harmless details about their work in job listings, social media, and
   other open websites. But this information provides useful metadata that
   can be used to understand the function of secret programs and map the
   surveillance state.
   Transparency Toolkit has been building open source tools to collect and
   analyze this open source intelligence. This talk discusses how we can
   use these data sources and tools to build a sousveillance state that
   holds the surveillance state accountable.

References

   1. https://www.youtube.com/watch?v=xipI-0HU010