Europe Minister David Lidington has written to his Government colleague Transport Secretary Patrick McLoughlin saying the line will concrete over farmland which currently serves as natural flood protection for his constituents' homes.
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George Osborne told MPs London would shoulder a large part of his 37% reduction in transport funding.
The prison was originally opened in 1852 as a mixed prison before becoming the first female-only local prison in England in 1902.
A man who tried to help a woman, who was being assaulted by other passengers on the Victoria Line, ended up being punched in the face.