… and radioactive in the middle.
By now you know that North Korea has apparently successfully tested a nuclear weapon. (Experts prefer the term "device", rather than "weapon", but given the fact that this device's sole function is to cause large-scale destruction, I think the word weapon is allowable.)
The BBC reports:
The size of the bomb is uncertain. South Korean reports put it as low as 550 tons of destructive power but Russia said it was between five and 15 kilotons. The 1945 Hiro