A spokesman for Mike McConnell, director of national intelligence, declined to comment on Tuesday.
American officials told The New York Times last week that several efforts to arrange such shipments were blocked or intercepted, but, citing the sensitivity of the intelligence, declined to say how.
Mr. Negroponte left the job this year to become deputy secretary of state, and a spokesman for the director of national intelligence declined to comment on the Newsweek article.
Studies in Intelligence declined to publish the manuscript and told Mr. Trulock that he should have it checked to determine whether it contained classified material.
The officials spoke on condition of anonymity because the report will not be issued until Thursday, and spokesmen for both the White House and the director of national intelligence declined to comment.
Before the same Senate panel last month, Dennis C. Blair, who is now the director of national intelligence, declined to say that waterboarding is torture, telling senators that it would be awkward for him to lead intelligence operatives he had accused of carrying out an illegal act.
''But if only one person or a small group spoke all the time, the collective intelligence declined.'' Second, the good teams all had high ''average social sensitivity'' — a fancy way of saying they were skilled at intuiting how others felt based on their tone of voice, their expressions and other nonverbal cues.
Moreover, it has been shown that even though general IQ score remains somewhat stable, crystallized intelligence grows rapidly and fluid intelligence declines rapidly between 15 and 60 years of age [ 56].
At the same sessions, the participants completed four cognitive tests: Matrix Reasoning, Block Design, Letter-Number Sequencing, and Digit Span Backward, all of which measure 'fluid' aspects of intelligence that decline during old age [8].
The federal intelligence agency declined to comment.
