Plant worker radiation doses.

Two workers hospitalized for radiation exposure.
"As a result, their feet were exposed to 170 to 180 milliSieverts of radiation."
You cannot possibly know dose from something like that to such accuracy. Also, I've heard over the radio feed that water got into their boots.

Read what Sievert is. By it's very nature it is only an estimate and cannot have this kind of accuracy.
Elsewhere I even heard a figure of 173 milliSieverts. Right, 1% accuracy.