7By Randy Dotinga/Correspondent of The Christian Science Monito: 《Who can repairjournalism' image? 》USA > Society Culture from the April 14,2004 edition.
9Venette S J. Risk communication in a High Reliability Organization: APHIS PPQ's inclusion of risk in decision making[ C]. Ann Arbor, MI: UMI Proquest Information and Learning, 2003:120 - 125.