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http://www.dailykos.com/story/2006/1/24/181225/664>
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The Department of Justice has been studying Sen. DeWine's proposed legislation. Because the proposed change raises both significant legal and practical issues, the Administration at this time is not prepared to support it.
The Department's Office of Legal Counsel is analyzing relevant Supreme Court precedent to determine whether a "reasonable suspicion" standard for electronic surveillance and physical searches would, in the FISA context, pass constitutional muster. The issue is not clear cut, and the review process must be thorough because of what is at stake, namely, our ability to conduct investigations that are vital to protecting national security. If we err in our analysis and courts were ultimately to find a "reasonable suspicion" standard unconstitutional, we could potentially put at risk ongoing investigations and prosecutions.
The practical concern involves an assessment of whether the current "probable cause" standard has hamstrung our ability to use FISA surveillance to protect our nation. We have been aggressive in seeking FISA warrants and, thanks to Congress's passage of the USA PATRIOT Act, we have been able to use our expanded FISA tools more effectively to combat terrorist activities. It may not be the case that the probable cause standard has caused any difficulties in our ability to seek the FISA warrants we require, and we will need to engage in a significant review to determine the effect a change in the standard would have on our ongoing operations.
. If the current standard has not posed an obstacle, then there may be little to gain from the lower standard and, as I previously stated, perhaps much to lose.
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<http://www.dailykos.com/story/2006/1/24/181225/664>