About: http://webisa.webdatacommons.org/168866881

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	I would think if it were offered when you check-in, just like bags or other fees, it may increase usage.
http://www.w3.org/ns/prov#wasQuotedFrom	airliners.net