[lefty-lie-spy]

So true. A 10 gray source is fatal if you get a dose all at once, but just stand a few meters away and you will get a much lower dose.
For those interested, on YouTube you can watch the excellent made for TV movie “the day after” from 1983 in its entirety. Its a very nice depiction of a serious radiation situation and generally accurate.

[Focault's Pendulum]

A 10 gray source is fatal if you get a dose all at once

I gotta get my eyes checked. I thought you said A 10 gay source is fatal if you get a dose all at once