Given the makeup of the Israeli intelligence community, the senior service, unlike most Western countries, is the military intelligence service, as opposed to the civilian intelligence service. It is Aman's Research Department that is responsible for preparing Israel's national intelligence assessments (similar to a U.S. National Intelligence Estimate).
Aman Signals Intelligence Site
Har Avital, Golan Heights

Although most Israeli politicians realize that if they ever want peace with Syria, they are going to have to return the land to Syria. Popular opinion in Israel, however, is overwhelmingly in favor of not returning the territory. I recently traveled through the Golan - Israel has built so much infrastructure that it will be difficult to return the area.
At the same time Aman's report was being briefed to the Knesset, the director of Mossad said almost the exact opposite - despite Al-Asad's public statements, the Syrian leader was not serious about returning to the negotiating table. Mossad's director believes the statements are merely for public consumption to deflect increasing world attention to Syrian designs on Lebanon and its close ties with Iran.
Israeli Prime Minister Ehud Olmert said that renewed talks with Syria would first require that Damascus stop allowing Iran to rearm and resupply Hizballah via Syrian territory, and stop support for Hamas, whose political leadership is headquartered in Damascus.
So, who does Olmert listen to?