North Korea may already be able to launch a nuclear attack on the U.S.

Why is this such an important issue? Because, if you believe, as Selva and others apparently do, that North Korea cannot yet attack the homeland with a nuclear weapon, it follows that the United States can take preemptive military action against North Korea without risking a retaliatory nuclear strike by Pyongyang. You can take such action without putting the United States at risk.

However, if you believe, as I do, that North Korea might be capable of striking us today, it follows that a preemptive U.S. military strike against Pyongyang could bring about the very thing that we are working to avoid — the nuclear annihilation of a U.S. city and the deaths of millions of Americans. If this darkest of scenarios were to play out, the assumption and assessment that North Korea cannot yet threaten us would be a strategic mistake of historic proportions.