Universities with high safety index in the United States include Princeton University, Brigham Young University, Virginia Tech, Purdue University and Pennsylvania State University. Among them, Princeton University is an American Ivy League school. This school is located in Princeton, New Jersey. It also has a strong cultural atmosphere, which makes it deeply loved by American upper class. There are many scholars living here, so there are few security problems. In addition to setting up the school security department, Princeton University also provides many ways for students to report crimes, such as anonymous hotlines, encrypted emails and sexual harassment reports. /zd/lx