Read:  A History of Commercial Air Freight

http://www.inboundlogistics.com/articles/features/0607_feature01.shtml

http://news.thomasnet.com/IMT/archives/2009/05/international-airfreight-air-cargo-decline-may-have-hit-floor-iata-march-report-suggests.html

http://www.istockanalyst.com/article/viewiStockNews/articleid/3040841

http://www.tsa.gov/what_we_do/layers/aircargo/index.shtm

http://www.csoonline.com/article/478342/What_New_Air_Cargo_Security_Rules_%20%20Mean_for_Business

http://abcnews.go.com/Business/wireStory?id=7604113