In rec.crafts.metalworking North wrote:
(snip)
No matter how 'safe' you make something, there's aways the chance of a
'what if' or '**** happens'. For example, what if some terrorist
somehow snuck into the core of a reactor wearing a backpack nuke ?
You see, rather unlikely, but '**** happens'

n.

Backback nuke (btw which weighs about 60-80 pounds) damage equals X.
Backpack nuke in nuclear reactor damage equals X + 5% (mainly from more
radioactive than normal fallout).