As Obama wrestles with determining his responsibilities in Syria and elsewhere, he faces a serious moral dilemma. As Appiah says, duties beyond borders are a matter of degree; and there are also degrees of intervention that range from aid to refugees and arms to different degrees of the use of force.
在竭力权衡其在叙利亚和其他地方的责任时，奥巴马面临着严重的道德困境。正如阿皮亚所说，跨国责任是程度问题；干预也有程度，从援助难民、武器援助到不同程度的使用武力。