CNN:

(CNN)They left Iran with valid visas in hand. But hours after landing in the US, they were forced to turn back on flights they never expected to take.

From Massachusetts to Michigan, reports are on the rise of authorities detaining and deporting Iranian students at US airports. A 27-year-old engineer who'd planned to get a doctorate at Michigan State University was deported from Detroit Metro Airport on Monday. A week earlier, a 24-year-old Northeastern University student was escorted onto a plane in Boston as protesters at the airport pushed for his release.
For the students, it's devastating. For immigrant rights advocates, it's a troubling pattern emerging as tensions run high between the US and Iran. And for American universities hoping to convince the world's top students to study in their classrooms, it's causing concern -- even though the overall number of cases is still relatively small.

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