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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The plaque at number 16 Cowley Street in Westminster marks the brown brick Georgian townhouse where Sir John lived for 31 years.
A man reportedly armed with several knives has been arrested in Whitehall on suspicion of planning a terror attack, police have said.
Metropolitan Police officer, Tom Harrison, has been crawling the course since the race began on Sunday morning.