Stories about radioactive tuna from the 2011 Fukushima meltdown that showed up 6,000 miles away on California’s shores sounded too crazy to be true. The FDA said the radiation was nothing to worry about in the United States, since you’d have to eat pounds of the stuff before being affected. But according to a 2011 Government Accountability Study, the FDA only inspects .1% of the fish we import for consumption.