About: http://webisa.webdatacommons.org/158585982

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A few years back there was a case where the German police forced a system like that to start monitoring its users.But it does give good background and points to some respected resources.
http://www.w3.org/ns/prov#wasQuotedFrom	berylliumsphere.com