North Korea tested a nuclear weapon.
Now what? Does the Atomic Scientist's Doomsday Clock move forward for the first time in almost than 5 years? I remember "duck and cover" drills at school as a kid and thinking how useless they were.
Now what? Visqueen and duct tape? I really doubt their effectiveness against radioactive particles no matter what Homeland Security says on their website.
Now what? I don't know.