The national movement to pressure universities to pull their investments from Israel has been battered this year by critics who call it divisive and anti-Semitic. But it has shown remarkable staying power in large part because of an unusual group of supporters: Jewish professors. Hundreds of college professors nationwide have signed petitions calling for divestment from Israel, among them several dozen Jewish professors who call their signatures an act of political conscience. Patrick Healy reports for The Boston Globe Read more about Jewish professors keep divestment drive alive