There will always be a ton of things you can do to purposefully endanger drivers (e.g. putting nails on a road) but self driving cars have the potential to make

There will always be a ton of things you can do to purposefully endanger drivers (e.g. putting nails on a road) but self driving cars have the potential to make the vastly more common case much safer. I do agree that some of those edge cases (such as policemen directing traffic) will need some new solutions, though.