Although there’s been no confirmation of radiation risk in food purchased at Walmart stores, the FDA said that it has detected unsafe levels of cesium-137 contamination at four U.S. ports. This contamination likely suggests that the shrimp was packaged in unsanitary conditions.

The FDA said it's investigating a shipment of Walmart shrimp that tested positive for radioactive material. As food costs rise, tariffs hit, is this just the beginning?