Short answer is because they can. Since the border has become such a focal point of our political conscious, the culture of some of these agencies is really be

Short answer is because they can. Since the border has become such a focal point of our political conscious, the culture of some of these agencies is really being brought to light. Just look at the private Facebook groups of current and former CBP agents comparing migrants to animals and whatnot. When the culture of an agency gets toxic, you start to see enablement of this kind of behavior.