About: http://webisa.webdatacommons.org/45183138

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	Google and other companies also cannot disclose the exact number of National Security Letters" they receive ??? these are essentially government-issued orders for information related to national security.
http://www.w3.org/ns/prov#wasQuotedFrom	wmra.org