With that guy in N Korea threatening an A bomb attack wouldnt be a bad idea to make sure your rad preps are there.While I think credibility is very low,this is cheap insurance.

I picked up a couple of these for the BOB's
http://www.amazon.com/iOSAT-Potassium-Iodide-Tablets-130/dp/B00006NT3A

iOSAT Potassium Iodide Tablets, 130 mg (14 Tablets)
by iOSAT

Price: $7.38 ($3.84 / oz)

In Stock.
Ships from and sold by

Please read all label information upon delivery
Reduces chance of thyroid damage in a radiation emergency
Safe for babies, children, pregnant and nursing women, those taking medicine for thyroid problem
One dose every 24 hours for no more than 10 days
Possible side effects include skin rash, swelling salivary glands, iodism