A think tank has said that high rise housing blocks should be bulldozed and replaced with houses in a bid to tackle social problems and "no go" areas. A Policy Exchange report said there was evidence that multi storey flats attracted higher crime rates.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.