Some packages of Great Value frozen shrimp sold at Walmart are at risk for potential for Cesium-137 contamination, the FDA says.

The Food and Drug Administration definitely wants the public to avoid eating those potentially radioactive frozen shrimp bags [link!] sold at Walmart — but if you have a little, as a treat, it probably won't kill you.

The U.S. Customs & Border Protection (CBP) first detected the material in shipping containers at four ports located in the U.S., including Los Angeles, Houston, Miami and Savannah, Georgia. The discovery prompted the FDA's advisory and investigation.