FDA urges recall of Walmart shrimp over radioactive contamination fear The Washington PostWalmart recalls possibly radioactive shrimp after public warned not to eat BBCWalmart recalls frozen shrimp over potential radioactive contamination NPRFDA issues warning, investigating after radioactive shrimp bound for Walmart detected at major US ports Fox BusinessShrimp sold at national retailer may be radioactive: ’Do not eat,’ warns FDA AL.com