Critical Infrastructures: Background, Policy, and Implementation, CRS Report for Congress [open pdf - 210KB]
"Prior to September 11, critical infrastructure protection was synonymous with cyber security to many people. Consequently, much of this report discusses cyber related activities and issues. However, the terrorist attacks of September 11, and the subsequent anthrax attacks, demonstrate the need to reexamine physical protections and to integrate this into an overall critical infrastructure policy. To the extent this happens, this report will capture it. However, specific physical protections associated with individual infrastructures is beyond the scope of this report."
Lessons Learned Information Sharing (LLIS)