What went wrong with Hawaii’s false emergency alert

An emergency missile alert accidentally went out to everyone in Hawaii on Saturday after an employee “pushed the wrong button.”
How did it happen? Hawaii’s Emergency Management Agency provided a bit more detail Sunday on what went wrong.
The mishap took place during a routine drill run after a shift change, Vern Miyagi, the agency’s administrator, said.
During the drill, an officer in the emergency operation center mistakenly selected an incorrect “template,”