About: http://webisa.webdatacommons.org/212028431

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	This event caused the U.S. to start paying attention to providing security for its president and other officers.
http://www.w3.org/ns/prov#wasQuotedFrom	goodreads.com