Bradley Manning's lawyer has told NBC's Today show that the US soldier wants to begin hormone therapy in order to live life as a woman and be known as Chelsea Manning.
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The shadow home secretary, 63, said she worked in the Home Office for nearly three years when she was a trainee.
Home Secretary Amber Rudd has attacked Labour's capabilities to effectively deal with any future terrorism threats facing the UK.
Tori Lee Castillo, 39, has been arrested on suspicion of child abuse.