Students from London Metropolitan University have staged their latest protest against the decision that could jeopardise their futures.
Five hundred are currently affected by the ban on the university recruiting from outside the European Union, after the UK Border Agency ruled it was not making proper checks on students.
They are now awaiting the outcome of a legal challenge against that ban.
Ronke Phillips reports.
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.