Amos Oz has an opinion on this too

"Last month, UC Berkeley student senate voted 16 - 4 in favor of a divestment bill calling on the university to halt its investments to the companies General Electric and United Technologies, "which support war crimes". The two companies supply the Israel Air Force with F-16 and Black-Hawk engines. But following an Israeli diplomatic effort, assisted by pro-Israeli students of the Hillel Foundation, the decision was overturned last week. In response to the bill, which has no practical significance and serves only as a recommendation, Will Smelko, president of the Associated Students of the University of California, was bombarded with some 12,000 emails from the bill's opponents. Smelko used his authority to veto the bill, and the student senators called a meeting on Thursday in an attempt to override the veto." (thanks Farah)