Um, hate to break it to you, but it happened. The question is how and perhaps why. This story should scare the beejesus out of everyone.
http://www.cnn.com/2007/US/09/05/loose.nukes/
http://www.foxnews.com/story/0,2933,295797,00.html
http://www.washingtonpost.com/wp-dyn/content/article/2007/09/05/AR2007090500762.html
Why?
honestly, if you were nuked I don’t think you’d even notice, a big flash and you’re gone....