Rumeysa Ozturk, a Turkish student at Tufts University, was detained by immigration authorities and moved to Vermont before a federal judge ordered her to be kept in Massachusetts. Ozturk's lawyers have argued that her detention violates her constitutional rights, including free speech and due process. The Department of Homeland Security terminated Ozturk's visa, alleging that she engaged in activities in support of Hamas, but did not provide evidence of that support. Ozturk is among several people with ties to American universities who attended demonstrations or expressed support for Palestinians and have recently had visas revoked or been stopped from entering the US.