Southern Utah University is investigating allegations that some instructors in its English programs for international students have been ignoring widespread plagiarism, The Salt Lake Tribune  reported. One instructor quit in protest over her sense that officials were unwilling to deal with the problem, and one instructor is on probation pending an investigation. The instructor who quit estimated that one-fifth of the assignments she graded included questionable material. The instructor said that there was little discipline of students she found engaged in plagiarism. She discovered some of the plagiarism when she noticed certain unusual phrases that she found turn up when passages are converted from Arabic to English through Google Translate.