The fact that the same effect was sought to be achieved through a public statement by an official, executed by voluntary actionof a private company, suggests a deep vulnerability of the checks imposed by the first amendment in the context of a public sphere built entirely of privately-owned infrastructure.
The UK Border Agency said it took the action because the university was not making proper checks on its overseas students - that it did not keep records of whether they had the required standard of English to be given a student visa or whether they were attending lectures.