Nine Chinese students who attend Arizona State University were denied entry into the US when they arrived at Los Angeles International airport last month and university officials are demanding to know why the students were sent back to China. The students were detained at LAX in the days before the start of classes on August 22 and were on their way to the university’s Phoenix-area campuses, school officials said. But they were “deemed inadmissible” by Customs and Border Protection. University officials said all the students were academically eligible to return to ASU and to the US under their visas. A spokesperson for US Customs and Border Protection said in a statement that there are more than 60 reasons a foreigner might be considered inadmissible, including health-related grounds, criminality, security reasons and immigration violations. The statement said the Chinese students were deemed inadmissible “based on information discovered during the CBP inspection”, but did not elaborate. A spokesperson for the US State Department referred all inquiries to Customs and Border Protection. All of the students were undergraduates and among them were at least one engineer, a student studying supply-chain management and some life sciences majors, a university official said. ASU officials remain in contact with the students, many of whom are continuing their studies through online or independent coursework. Chinese family paid US$1.2 million for Yale spot. Why weren’t they charged? ASU President Michael Crow last week sent letters to the Department of Homeland Security, which has jurisdiction over Customs and Border Protection, and the State Department, requesting a review of each student’s situation and an explanation of the “standard procedures” for screening international students and their electronic devices. “In our country, where we value due process and celebrate the different ways in which our government behaves from that of the arbitrary and capricious behaviour of other nations, it is beyond my comprehension how the US government could establish and implement policies that bring about the outcomes we are now witnessing,” Crow wrote. A university official said on Wednesday that Crow had yet to receive a response. The ASU students’ denial comes as other universities are also battling the federal government’s policies and actions toward international students. On August 23, a Harvard-bound Palestinian student was turned away at Logan International Airport in Massachusetts. The student, Ismail Ajjawi, 17, told the Harvard Crimson that immigration authorities questioned him about his friends’ social media activity and his religion. Ajjawi was allowed in on Monday, in time for the start of classes, after he “overcame all grounds of inadmissibility”, a Customs and Border Protection spokesperson said. ‘Monstrous and cruel’: US woman gets 25 years for killing Chinese student In a welcome letter to students Tuesday, Harvard President Lawrence Bacow lamented the obstacles international students and immigrants increasingly face coming to the US. “Various international students and scholars eager to establish lives here on our campus find themselves the subject of scrutiny and suspicion in the name of national security, and they are reconsidering the value of joining our community in the face of disruptions and delays,” Bacow wrote. In California the UC system, which receives billions of dollars in federal money and has the most Chinese students and scholars in the US, is finding itself in the cross hairs of US President Donald Trump’s trade war with China. Campuses from San Diego to Berkeley have reported that Chinese students and scholars are encountering visa delays, federal scrutiny over their research activities, and new restrictions on collaboration with China and Chinese companies. Overall, the number of student visas issued by the State Department has declined sharply in the past three years. The nine ASU students denied admission to the US represent a tiny fraction of the university’s 13,000 international students, roughly 3,400 of whom come from China.