Forget Iraq. Really. This might be scarier - North Korea's reactivated Yongbyon nuclear reactor can generate enough plutonium to make 10 nuclear warheads per year according to this slightly outdated FAS report. The North was also building 2 more reactors that could generate a combined 50 weapons a year until construction stopped in 1994.

And, are there any lessons from our nuclear policy during the Vietnam war that we can apply to North Korea? The Nautilis Institute tries to sort it out.

Also, if reports from nuclear physicists and rocket scientists from outside the DPRK haven't convinced you that the North is run by a madman, check out these travelogues from tourists who've been on the inside: Arne Eilers, a Brit, went in mid 2002 and Simon Bone has an excellent website with pictures of the Pyongyang subway system.