UN official Christopher Gunness We have hearts and occasionally they break

Working in strifetorn Gaza has exposed United Nations official Christopher Gunness to the terror of a life lived in the constant shadow of war. But on Wednesday, when artillery shells rained down on a UN school in a refugee camp sheltering evacuees, killing children as they slept next to their parents on the floor, the insurmountable horror of the situation suddenly overwhelmed him. Christopher Gunness. Mr Gunness, a senior director for the United Nations Relief and Works Agency for Palest