Three of the nation's top intelligence officials say their agencies are taking steps to limit access to classified data following recent intelligence leaks by the likes of PFC Bradley Manning and NSA contractor Edward Snowden.
CIA Director John Brennan, NSA Director Keith Alexander and FBI Director Robert Mueller made a rare joint appearance at a cyber security conference at Fordham University in New York Thursday.
Alexander, whose agency is under fire for its surveillance programs, said the NSA is working to reduce "by 90 percent" the number of system administrators—instead using technology so fewer individuals come into contact with sensitive information.
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But Brennan said technology "can only do so much" to limit leaks, and that training is also a key.