What to do in the event of a nuclear attack

So what should you do in a nuclear missile attack?

That key bit of advice was mostly missing from the mistaken alert sent out Saturday to mobile phones across Hawaii. All it said was, “BALLISTIC MISSILE THREAT INBOUND TO HAWAII. SEEK IMMEDIATE SHELTER. THIS IS NOT A DRILL.”

https://www.twincities.com/2018/01/15/what-to-do-in-the-event-of-a-nuclear-attack/