Going into hospital far riskier than flying: WHO | Reuters

Your chances of dying in a hospital are much higher than in a plane crash. This is hardly shocking, but speaks to two interesting issues: first, the problem could be solved if evveryone always kept their hands clean at a hospital, which seems simple but is far from it. I remember when I was doing work with GE hearing about simple things like lab coats and just how much contamination they carry. Second, it speaks to our total inability to properly calculate risk.