CLAUDIA ROSETT: North Korea’s Fireworks.

Enough, already. There is no safe way to end the North Korean menace, but the threats from Kim Jong Un’s regime are amplifying at a clip that suggests it is even more dangerous to allow the Kim regime to carry on. While the world has watched, for years — and while the United Nations Security Council has passed one sanctions resolution after another — North Korea has not only been carrying out ballistic missile and nuclear tests, but enriching uranium and reprocessing plutonium to amass ever more bomb fuel. As the Journal editorial also notes, North Korea by now “has an estimated 20 nuclear warheads as well as chemical and biological weapons.”

The threat is not solely that North Korea — well versed in shakedown rackets — could target the U.S. with nuclear-tipped ICBMs, or that North Korea can add nuclear weapons to the massive arsenal with which it has long threatened Seoul.

A further danger is that North Korea could proliferate its advancing nuclear missile technology, or even the weapons themselves, to other rogue states, such as Iran — with which Pyongyang has trafficked and cooperated for decades in missile development, and according to some press accounts (please see my discussion of reporting by Douglas Frantz), in nuclear weapons development as well.

Enough, already, indeed.