It's like Warren Buffet's three qualities he looks for in an employee: Intelligence, energy and integrity. https://www.cnbc.com/2017/10/05/character-traits-warren-buff...
I was talking about problems within the boundaries of the alert incident, and that’s a level removed from the universe within which I was characterizing “the biggest problem”, and it's not clear to me how much was premature communication before all the facts were in and how much was lying, but I don't disagree that the post-incident communications reveal problems of trustworthiness that are potentially a bigger problem than anything within the incident.
The very last may not produce an all-clear in the short term, but it's likely to at least require lifting the “missile is likely to hit in our area soon” alert in favor of a very different emergency posture, which is a similar need.
If the US is going to exchange nukes with China or Russia, they could decide to wipe out Hawai'i. But N. Korea has like, what 5-6 nukes? They're not known to be accurate either.
Except for Honolulu Hawai'i is mostly composed of small population centers separated by miles of ocean or valley walls. If N. Korea decided that Hawai'i really had to go, I'd guess they could use their arsenal to kill/injure max: 6 missiles * 20k casualties = 100k casualties total, which would still leave 1.1million people to hear an all clear.