Nuclear-armed terrorists are a real threat to Britain,

[Prep Girl]

depends entirely on the amount of explosiove used to spread the fissile material and the weather conditions, but a briefcase bomb could do say up to 3/4 of a square mile, by that i mean deposit radioactive shit over the area not blow it up.

Yeah I knew you ment that, so 8/12miles would be far enough away? but depends on size.
This stuff doe's my head in, I read about it but it won't stay in, I wouldn't have much of a clue what to do in case of what bomb.