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http://www.google.ca/search?hl=en&q=FBI+capabilities&meta=
http://www.google.ca/search?hl=en&q=FBI+surveillance&meta=
http://www.google.ca/search?hl=en&q=NSA+surveillance&meta=
http://www.google.ca/search?hl=en&q=NSA+capabilities&meta=
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http://www.citebase.org/abstract?id=oai%3AarXiv.org%3Agr-qc%2F9610070
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