Empathy For Lived Experiences

Beginning a career at State in the Office of International Religious Freedom, Sameer Hossain visited the Rohingya refugee camps in the country where his parents were born (Bangladesh). Learning of the lived experiences of women and children in these camps, he thought of his own kids, and then switched his focus from international human rights issues to traumatic domestic events, and he now serves in a new but similar role at the Department of Homeland Security.  How does a man so empathetic avoid PTSD and just get the job done?