From the article:
The recent killings of three humanitarian aid workers in Nigeria by suspected Boko Haram militants have sent shock waves throughout the humanitarian aid community and illuminated the increasingly precarious landscape such personnel must navigate to help people in areas of conflict and instability.
But the slayings were not an anomaly.
... Jeremy Konyndyk
, a senior policy fellow at the Washington-based Center for Global Development, whose research focus includes humanitarian response, said the high casualty count could partly be attributed to the growing size of the aid industry and the rising number of humanitarians working in more risky places, which increases the chances "that something bad will happen," he said.
"The typical aid environment is no longer an earthquake response or even a drought or famine type of response," Konyndyk said. "The typical aid environment now really is providing relief in incidents of active conflict and that is an inherently more dangerous context for providing aid than a natural disaster."