I saw a map of the fallout potential in event of a meltdown. Had southern Alaska, BC, parts of other provinces, and the western half of the US in the projected area hit by 750 rads. Good news (really good news considering that 750 rads means 90-100% fatalities of untreated and 50-100% fatalities of treated) is that it's bullshit. Up above a thousand rads is "literally using a shovel to get radioactive molten slag back into the reactor" exposure, 600+ rads is "Sitting in the control room 20 yards from the reactor attempting to do damage control" levels. Just in case anyone else sees that map and gets scared by it.