Epidemiologist explains how cyclospora test on lettuce sample might have resulted in false positive

Epidemiologist Ben Miller joins "The Daily Report" to explain how the FDA's testing of a sample of Taylor Farms' lettuce could have resulted in a false positive for cyclospora, as the FDA said it did on Sunday. The FDA said Monday that its investigation and data "continue to converge on shredded iceberg lettuce from Taylor Farms locations in central Mexico."