Despite racial differences, the vast majority of individuals living in food deserts struggle with transportation to food sources. Since these areas are low-income neighborhoods, many families may be unable to have the financial means to easily and regularly access supermarkets or grocery stores that tend to be located far from their home. This acts as an additional obstacle individuals must face when trying to provide food for their family and prevent hunger. Regionally, the food insecurity rate was highest in the South (12.0 percent). Regionally states experience different rates of food insecurity, and its severity. Rates of prevalence of food insecurity were highest in AL, AR, IN, KY, LA, MS, NC, NM, OH, OK, TX, and WV. These states have higher rates of very low food security in AL, AR, KS, LA, MS, NM, OH, OK, TX, and WV. Agriculture is a major industry in the United States, with California accounting for over 12% of the U.S. agriculture cash receipts. Over half of agricultural workers in California, contributing to the state's agriculture economy and providing the nation with over half of all fruits and vegetables, are undocumented. Despite undocumented laborers contributing to the agriculture industry, farm work and labor are among the lowest paid occupations in the U.S. Many undocumented communities suffer from food insecurity due to low wages, forcing families to purchase economically viable unhealthy food. Though existing food pantry and food stamp programs aid in reducing the amount of food insecure individuals, undocumented immigrants are ineligible for social service programs and studies have found that limited English acts as a barrier to food stamp program participation. Due to a lack of education, encounters with government agents, language barriers, undocumented individuals pose higher rates of food insecurity and hunger when compared to legal citizens. The Trump administration is attempting to draft new stricter immigration policies; undocumented individuals who fear being deported under the new policies, limit their interactions with government agencies, social service programs (e.g., food stamps), increasing their susceptibility to food insecurity. Food insecurity among undocumented communities can in some cases be traced to environmental injustices. Researchers argue that climate change increases food insecurity due to drought or floods and that the discourse must address issues on food security and on the food systems of the U.S. Another example may be large populations of undocumented communities along the Central Valley of California. Towns located across the Central Valley of CA exhibit some of the highest rates of air, water and pesticide pollution in the state. Hunger can manifest a multitude of physical symptoms and signs.