Sharing Law Enforcement and Intelligence Information: The Congressional Role

Almost all assessments of the attacks of September 11, 2001, have concluded that U.S. intelligence and law enforcement agencies had failed to share information that might have provided advance warning of the plot. This realization led Congress to approve provisions in the USA PATRIOT Act (P.L. 107-56) and subsequent legislation that removed barriers to information sharing between intelligence and law enforcement agencies, and mandated exchanges of information relating to terrorist threats. Most experts agreed that statutory changes, albeit difficult to enact, were essential to change the approaches taken by executive branch agencies. The barriers that existed prior to September 2001 had a long history based on a determination to prevent government spying on U.S. persons. This had led to the establishment of high statutory barriers to the sharing of law enforcement and intelligence information. The statutes laid the foundation of the so-called "wall" between intelligence and law enforcement that was buttressed by regulations, Justice Department policies, and guidance from the judicial branch. Despite the widespread acceptance of a barrier between law enforcement and intelligence, by the early 1990s it had become apparent to some that the two communities could mutually support efforts to combat international criminal activities including narcotics smuggling. Later in the decade dangerous threats to the U.S. posed by international terrorists came into sharper focus. Nevertheless, efforts to adjust laws, regulations, and practices did not succeed, drawing strong opposition from civil libertarians. Only the tragedy of the 9/11 attacks overcame earlier concerns and led Congress and the executive branch to remove most statutory barriers to information sharing. Laws and regulations have changed significantly since September 2001 and an Information Sharing Executive (ISE) has been established within the Office of the Director of National Intelligence to design and implement information sharing procedures. It is clear, however, that sustaining the exchange of law enforcement and intelligence information remains a challenge. In particular, there is continued concern about sharing of information that might in some way jeopardize the rights of free speech or association of U.S. persons. This opposition has contributed to the difficulty Congress has had in addressing legislation in this area and can be expected to continue. Some argue that, given the extent of legislation enacted in recent years, extensive oversight of information sharing efforts may be an appropriate way to ensure that the balance between ensuring domestic security and protecting civil liberties can be maintained.
Source: Congressional Research Service

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