Mississippi Housing AuthorityI do not know about Mississippi; but in Nevada section 8 and public housing is low cost or no cost housing for the low income, and depending on the income level and dependents level the government can actually end up giving the resident free electricity and utilities, and a monthly stipend to be used on any other household expenses.(independent of food stamps and medicare/medicaid or WIC)
Urban InstituteThey have more information at this link
Mississippi Department of Human ServicesThe page linked is the main page for Mississippi SNAPS program.
The Food Stamps programs will vary from state to state, but once you get food stamps it is easy to manipulate the system to continue getting more and more aid.
Food Stamps will not cover everything and quite often (here in vegas) people will trade their food stamps cards for cash. And use the cash for whatever else they need (such as smokes, gas for cars, laundromat use, sadly some will also use the cash for drugs and alchohol)
It is when these things are combined that the abuse begins. People will choose not to work, they will choose to continue having more dependents, take in elderly family members, etc. to maximize the money that they receive from the government.
*I used information for Mississippi for all of my links because I know you help people who need it, and maybe the local information will be of assistance to you in this endeavor... besides, it always helps to understand a concept when you see it in your area as opposed to "out there"
**edit**
Also here in Vegas, many people will grow some sort of sense of entitlement when they begin collecting these government resources. They feel that because they are being given aid.. the government owes them the aid from then on, even if they have done nothing to contribute to the system.