how private business can have a dramatic impact on areas hit by major critical incidents such as the work done by Walmart during Katrina relief. 

Discuss how private business can have a dramatic impact on areas hit by major critical incidents such as the work done by Walmart during Katrina relief. Why do businesses do this and what do they stand to gain? Be sure to touch on some of the challenges of this type of response and how private response can sometimes be a negative.