The American Association of University Professors has released an open letter  to members of the American Studies Association urging them to reject a proposal backed by the group's leaders to endorse a boycott of Israel universities.  Members of the American Studies Association are voting on the proposal this month. The AAUP has a longstanding position against boycotting entire universities or countries, and the open letter reiterated those views. "The association recognizes the right of individual faculty members or groups of academics not to cooperate with other individual faculty members or academic institutions with whom or with which they disagree," the letter says. "We believe, however, that when such noncooperation takes the form of a systematic academic boycott, it threatens the principles of free expression and communication on which we collectively depend."