David Cameron has opened his speech at the Conservative Spring Forum by saying that his party came to power in "perilous" times and that it was "wrestling with historic debts".
He added: "We are here to fight, we are here to win and we have never been more up to the task of turning our country around."
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Home Office data offers an incomplete picture of the perpetrators and victims, the National Audit Office (NAO) have said.
The report concludes that nine million adults suffer from constant loneliness, which is as harmful to health as obesity or smoking.
Members of the RMT and TSSA on Virgin Trains West Coast are taking industrial action.