One Direction fans have started to camp in Leicester Square, London, in a bid to get a glimpse of their idols at tomorrow's world premiere of This Is Us.
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Education Secretary Damian Hinds says most universities have healthy balance sheets.
The administration has invoked a rarely used provision in US federal law to sidestep a congressional review of arms sales.
Mr Robertson has only been in post for three years and will leave the company at the end of June.