It has happened, it could happen to anyone.
a plane could also crash into your home. it has happened, it could happen to anyone. are you building a steal dome around your home to protect yourself?
considering their are 7 billion people in the world, anything that can happen will happen. that doesn't mean we need to make laws and regulations to block anything that can happen. it isn't free. it cost your taxpayer money, and the time lawyers and agencies spend on this is time they aren't spending on other things.