Student informants are a growing presence on Chinese college campuses, according to a recent report by the Central Intelligence Agency highlighted on a blog of the Federation of American Scientists. The student informant system, or SIS, was put in place following the protests at Tiananmen Square in 1989.  ”Students have had their scholarships revoked and their academic records penalized because of information provided by student informants that is sometimes highly subjective, such as facial expressions,” says the report.  While the SIS is often integrated into the academic-affairs system, the report notes that professors have publicly objected to the presence of these informants on campus.