Children are the saddest casualties, and too often the most vulnerable. As recently as 2014, in the latest catastrophe to spin out of the death fest in Syria, the local polio outbreak spread to Iraq. Despite what the New York Times called “an ambitious Middle East inoculation effort,” the conditions of war, including tens of thousands of internal refugees huddled in unclean camps, once again catapulted the insidious virus across international borders to threaten mostly the vulnerable children, this time in Iraq.