Chief enforcer of gun laws fears mass shootings may make Americans numb to violence

The head of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives says he fears that a drumbeat of mass shootings and other gun violence across the United States could make Americans numb to the bloodshed

​ABC News: US The head of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives says he fears that a drumbeat of mass shootings and other gun violence across the United States could make Americans numb to the bloodshed