kjh1 writes "Popular Science is just chock full of good articles this month. One in-depth article addresses the question many are afraid to acknowledge is a possibility - can terrorists acquire the raw materials and then deliver a nuclear bomb? A good read that explains the difficulty in doing all of the above, while pointing out calmly that it is still possible." From the article: "Most experts with whom I spoke said that a nuclear terror attack is plausible but not inevitable, and that there's no way to precisely gauge the odds. 'I don't think the public ought to lose a lot of sleep over the issue,' says nuclear physicist Tom Cochran of the Natural Resources Defense Council. "