Florida growers warn of danger to food supply

Supporters of changes in immigration law say people who believe all undocumented workers should be expelled from the country don't comprehend how that would affect the availability and security of the U.S. food supply.

"We would be looking at an increase in the cost of food," Carlton said. "And we would almost certainly end up going offshore for much of our food supply, which would also mean having to worry about food safety."

Carlton and other proponents of legalizing farmworkers support a bill before Congress called AgJobs, which could forge a path to documented, permanent residency for those laborers.

Opponents say it amounts to amnesty for entering the country illegally. They also say it doesn't do anything to increase border security.