An AI doctoral candidate in California has had their student visa status revoked, putting their immigration status at risk. Speaking to TechCrunch, the student, who wished to remain anonymous due to fear of further repercussions, said they were notified by their college's international student center that they had been flagged in a criminal records check. The student has been in the U.S. for nearly a decade, starting with their undergraduate studies, and insists they have no criminal record. "The most likely cause may be an interaction with the police from many years ago, even before I entered graduate school," the student explained. "I was conducting AI research and intended to continue in the field after graduation." Over the past few months, the U.S. government, particularly the State Department and Immigration and Customs Enforcement (ICE), has aggressively targeted more than a thousand international students, challenging their visa statuses. This crackdown, orchestrated under the Trump administration, has often left colleges unaware of the federal actions, providing students with little notice or recourse. Yisong Yue, a machine learning professor at Caltech, expressed deep concern about this hardline stance. "It is harming the talent pipeline," Yue said. "Research is highly specialized, and when a doctoral student is pulled from a project, it can set back the work by months or even years. Beyond the immediate impact on the students and projects affected, many visa holders are now living in a state of anxiety." The crackdown has spared no institution, with reports of visa suspensions affecting students at Ivy League universities, large public colleges, and small liberal arts schools. Some students have been accused of supporting Palestinian militant groups or engaging in antisemitic activities, while others have been targeted for minor legal infractions, such as speeding tickets or traffic violations. Some revocations appear to be the result of administrative errors. For instance, Suguru Onda, a computer science doctoral candidate at Brigham Young University, had his revoked visa reinstated without explanation shortly after his immigration attorney, Adam Crayk, filed a lawsuit. Crayk believes the government is using AI to screen visa holders without human verification, leading to such mistakes. Last week, a Georgia judge issued a temporary restraining order for approximately 100 international students whose visas were revoked, directing the government to reinstate their legal status. However, this protection extends to only a fraction of the students at risk of deportation and could face future legal challenges. Yue also highlighted the significant contributions of international students to recent technical breakthroughs in AI. Ashish Vaswani, who moved to the U.S. in the early 2000s to study computer science, is one of the co-creators of the transformer model architecture, which powers advanced chatbots like ChatGPT. Wojciech Zaremba, another prominent figure in the AI field and co-founder of OpenAI, earned his doctorate from NYU on a student visa. A recent analysis by the nonprofit educational association NAFSA revealed that international students at U.S. colleges and universities contributed $43.8 billion to the domestic economy during the 2023-2024 academic year and supported over 378,000 jobs. Yue noted that he has had multiple discussions with senior AI researchers who are considering their options for staying in the United States. "This includes professors at top universities and researchers at leading tech companies like OpenAI and Google," he added. "The government's actions are making the U.S. a significantly less appealing destination for many talented researchers." The current situation underscores the broader implications of the visa crackdown, not only for individual students and their academic pursuits but also for the future of AI research and the U.S. economy as a whole.