The Archbishop of Canterbury, Dr Rowan Williams, has urged people to go and "join the human race" this Christmas and become agents of transformation and renewal.
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The actor was asked about black or mixed race role models and whether Markle's upcoming marriage to Harry would help inspire young people.
Youngsters are still consuming too much unnecessary sugar and caffeine, according to the study.
Home Office data offers an incomplete picture of the perpetrators and victims, the National Audit Office (NAO) have said.