Context. It's hard to explain to people who didn't go through it. The word "threat" didn't even register. There is no other information to evaluate except the m

Context. It's hard to explain to people who didn't go through it. The word "threat" didn't even register. There is no other information to evaluate except the message and the dprk situation. No one is going to launch a conventional ballistic warhead into Pearl Harbor. The ONLY conclusion you can come to in the minute after you just got the info is some serious nuclear stuff is about to go down (but please let it not). The head of our (US) armed forces has been saber rattling for months. The risk of miscalculation is off the charts. Also there was no indication who sent the message (state, fed, ?). You are also in a surreal stunned state. Then you start looking for shelter and yes monitor twitter. Honestly I'm surprised people didn't freak out more and get hurt.