Sally Kornbluth, the president of the Massachusetts Institute of Technology (MIT), has expressed concerns about the consequences of “unexpected visa revocations”, Al Jazeera reports.

In a letter to the MIT community, Kornbluth said nine MIT students, recent graduates and postdoctorates have had their “visas and immigration status unexpectedly revoked” since April 4. She said the revocations were causing alarm at the “possibility of future actions”.

She also warned that the uncertainty could “make it less likely that top talent from around the world will come to the US” and “damage American competitiveness and scientific leadership for years to come”.

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