Bruce Taylor, founder of America's largest salad producer Taylor Farms, speaks for the first time about the FDA investigation into its lettuce's link to cyclosporiasis.

The agency said a previous finding was “a false positive,” but the supplier to companies such as Walmart and Taco Bell remains at the heart of an ongoing investigation.

Taylor Farms initially claimed the FDA apologized for reporting what turned out to be a false positive test on its iceberg lettuce.