JASON Kandeke and his sister Esther got out of the van and rushed into the arms of their weeping uncle and grandmother - the children's first contact with their family since Congolese fighters killed their parents six years ago. Militias raided their village of Mingele in southeastern Democratic Republic of Congo - a region where militia groups have clashed for years, fighting over land and resources. Jason, now 12, and Esther, 14, both fled to another village where they were taken in. Earlier this year their carers were also killed in another attack. A friend passed their details onto the…