In a letter to the Home Affairs Select Committee, Theresa May said the £1,716,306 figure includes the terror suspect's legal aid costs of £647,658, as well as more than £1 million in Home Office costs for pursuing the case through the courts.
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More than 400 people have died in a week of bombardment in rebel-held eastern Ghouta in Syria.
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The band's hit singles include You To Me Are Everything, Can You Feel The Force?, and Can't Get By Without You.