They banned flights from violating air space in the vicinity of WH. They should ban flights of this nature in the area meaning that he wouldn't have been permitted to take off to start with. Of course that wouldn't prevent someone from venturing there from far off but it would require a much larger screwup or serious intention
I don't think you understand the situation. Ban takeoffs in what area?
This guy took off from Pennsylvania. How large an area would you ban private aircraft from?