Terrorism Information Sharing and the Nationwide Suspicious Activity Report Initiative: Background and Issues for Congress [December 28, 2011] [open pdf - 544KB]
"The 2004 National Commission on Terrorist Attacks Upon the United States (the 9/11 Commission) cited breakdowns in information sharing and the failure to fuse pertinent intelligence (i.e., 'connecting the dots') as key factors in the failure to prevent the 9/11 attacks. Two of the efforts undertaken since 2001 to tackle these issues included: Congress mandating the creation of an information-sharing environment (commonly known as the 'ISE') that would provide and facilitate the means of sharing terrorism information among all appropriate federal, state, local, and tribal entities and the private sector through the use of policy guidelines and technologies. States and major urban areas establishing intelligence fusion centers to coordinate the gathering, analysis, and dissemination of law enforcement, homeland security, public safety, and terrorism intelligence and analysis."
CRS Report for Congress, R40901