Alaska Airlines had a door come off during a flight last week and the flight had to have an emergency landing. The plane was a Boeing $737$ Max $9.$ The FAA quickly grounded all Boeing $737$ Max planes being flown by United and Alaska airlines. This probably certainly has not helped airline ticket sales. What should airlines $($Alaska and United $)$ do to convince customers that flying is safe $?$ What should Boeing do to prevent future problems and to gain trust from the American public $?$