Cockpit announcement: "The authorities here require us to have flight crew spray for mosquitos upon landing using aerosol cans before opening cabin doors. you w

Cockpit announcement: "The authorities here require us to have flight crew spray for mosquitos upon landing using aerosol cans before opening cabin doors. you will now see the attendants walk down the aisle spraying so we can unload you as soon as possible." It would still be expensive for next gen too. Having to design an entire system that has never existed before that can operate under aerospace conditions is expensive as hell even before you get into certification. A sibling comment points out all of the design certification issues you need to think about