Speaking about George Entwistle's recent departure from the role of Director-General, BBC Trust Chairman Lord Patten said he was assured that his pay-out deal was in the "best interests" of the BBC and the licence fee payer.
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Headliners taking to the stage during the weekend will be Kasabian, Depeche Mode, Liam Gallagher and The Killers.
Official statistics show there were 82,694 inmates in jails in England and Wales on Friday.
Fears have been raised about the safety of the structure after the blaze last Friday night.