http://www.medicalnewstoday.com/medicalnews.php?newsid=29350
"Along with the likelihood of human tragedy, an attack on any of the Nation's infrastructures would disrupt the smooth functioning of our business and government activities, and chip away at our national sense of security and well-being. In 2003, the President mandated a national strategy for the science research and development needed to help protect the Nation's infrastructures. That Plan is now in print and available to interested media and the public."
National Critical Infrastructure Protection Research and Development Plan - PDF - http://www.dhs.gov/dhspublic/interweb/assetlibrary/ST_2004_NCIP_RD_PlanFINALApr05.pdf