 Several experts have questioned the validity of the death toll numbers ; Anthony <unk> , professor emeritus in environmental history at Northeastern University , warned that casualty estimates could only be a " <unk> " , and Belgian disaster response expert Claude de <unk> de <unk> noted that " round numbers are a sure sign that nobody knows . " Edmond <unk> , UN Assistant Secretary @-@ General for <unk> Operations , said , " I do not think we will ever know what the death toll is from this earthquake " , while the director of the Haitian Red Cross , Jean @-@ Pierre <unk> , noted that his organization had not had the time to count bodies , as their focus had been on the treatment of survivors . 
