Interesting, The 2 most involved and therefore influential and possibly powerful agencies in a disaster are the DOD and USDA those two agencies will be involved in all aspects in a national emergency
on page 28
http://www.all-hazards.com/LGP/library/frpfull.pdf
on page 28
http://www.all-hazards.com/LGP/library/frpfull.pdf
