There was no reason to lower the rad limits on food, especially after the short-lived nuclides have long decayed away.

FORBES: Like We've Been Saying -- Radiation Is Not A Big Deal

"Using these plants, we will be able to remove radioactive nuclides from the water and make it clean for irrigation purposes or even as a source of drinking water, " says Slavik Dushenkov of Phytotech.

CNN: Flower power