Taco Bell reports drop in foot traffic amid cyclosporiasis outbreak, probe continues into source

The FDA continues to hunt for the source of the cyclosporiasis outbreak, though it says its investigation "continue to converge on shredded iceberg lettuce from Taylor Farms locations in central Mexico." Fast food giant Taco Bell, which uses shredded lettuce in some products, has seen declining foot traffic as some Americans avoid raw produce. CBS News' Carter Evans reports.