About: http://webisa.webdatacommons.org/6636985

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	One high-profile [FCDA Operation Alert] exercise occurred in 1955 when 15,000 federal employees, including the president, were evacuated from Washington to an encampment in rural Virginia.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonpost.com