Genstabler - of course they aren't any less tragic but those taking part and attending a show know the potential risks. Those driving along a public road going about their business have other risks but being injured or killed by a display aircraft being flown for fun/sport/hobby etc should not be one of them. One can't just say 'Oh well, anything in life is a risk, so there you are, very sad.' There has to be responsibility for what would appear to be anything up to twenty deaths of people completely uninvolved. And that viewpoint doesn't mean I think airshows should be banned.