Here’s our editorial, which includes this bit:

We should avoid grandiose promises, but explain how we intend to punish and contain Pyongyang, and then follow through on each and every step. The rest of the world is watching, most importantly Iran. It must not be in doubt that we mean what we say, and that the calculation behind North Korea’s test is a blunder: Provocations will gain rogue states nothing but more isolation and pain.