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Lavie had a rich career in the intelligence unit 8200, as Arab affairs adviser to the Coordinator of Government Activities in the Territories and in MI's research unit. In 1997 he graduated cum laude from the National Security College. After leaving the IDF he entered academia and recently completed a doctoral thesis on Palestinian society. In an April 2004 letter to Ze'evi-Farkash, Lavie wrote: "The conception underneath the 'no partner' approach became a model with grave national implications. Its consequences are manifested in the unilateral disengagement plan for Gaza and in the construction of the separation fence in Judea and Samaria." Lavie added that he had discovered, from conversations with former Shin Bet and Mossad espionage agency personnel, that their organizations had also seen the same disparity between oral and written doctrine, which had helped deepen the mistaken conception.
In response to a previous letter on the same subject, Ze'evi-Farkash wrote to Lavie that he felt "a sense of missed opportunity on your part for not having expressed these views when you felt the disparities were coming into being." He added: "There is no need for us to examine the validity of your viewpoint. We believe you wrote from a subjective viewpoint, it is true, but with sincerity and clarity, and this is indeed your perception of the developments." Ze'evi-Farkash suggested to Lavie that he approach the "relevant parties," namely his predecessor as DMI, Amos Malka, and the former head of the MI research unit, Amos Gilad.
It was not until 2008 that the internal investigation was conducted, under the tutelage of the current DMI, Major General Amos Yadlin. Its findings, which are being publicized here for the first time, are that MI suffers from knowledge gaps, a dearth of resources and a lack of group thinking, and that it speaks in two voices. The written voice is intended for internal control and potential commissions of inquiry; the oral voice, which is not documented, is for the senior political level. The report found that as long as the political echelon rejected the idea of a unilateral disengagement because it would be "withdrawal under fire," MI's research unit produced papers in a similar vein. However, when the political level decided to go ahead with the disengagement, the research unit wrote: "A unilateral disengagement will pose a challenge to Hamas and place a wall in front of
Arafat."
Lavie described the "two voices" syndrome in a November 2003 letter to the DMI, headlined "Failures in the Work of Intelligence Regarding the Palestinian Issue." The "oral doctrine" is documented in the minutes of General Staff and cabinet meetings where senior MI officers gave briefings. In these closed forums (though much of the content finds its way into the media) MI officers provide assessments that are close to the leaders' views but often deviate from internal written assessments.
http://www.haaretz.com/hasen/spages/1053882.html