The article describes the situation in post-Katrina New Orleans as one where trauma is constantly happening and more work is going into emergency response than recovery. Instead of construction workers, social workers and the like, the military was sent by the government for aid after Katrina.
The policy is to extend Good Samaritan laws to first responders so that they would not be liable for "spreading contamination while attempting to save lives."
Miriam Ticktin is an Associate Professor of Anthropology at The New School For Social Research in New York City. Her research focuses on "what it means to make political claims in the name of a universal humanity" and more recently looks at humanitarianism at various levels. For emergency response her work focuses more on response done for humanitarian aid and displaced peoples.
http://www.newschool.edu/nssr/faculty/?id=4d54-6379-4e44-4d35