Iceberg lettuce eyed in parasite outbreak

The FDA is investigating iceberg lettuce supplied to Taco Bell by Taylor Farms as a potential source for the cyclosporiasis outbreak in five midwestern states. It's a parasite-borne illness triggering severe cramps and diarrhea. NBC News' Anne Thompson reports.

The FDA is investigating iceberg lettuce supplied to Taco Bell by Taylor Farms as a potential source for the cyclosporiasis outbreak in five midwestern states. It's a parasite-borne illness triggering severe cramps and diarrhea. NBC News' Anne Thompson reports.