This morning Radio Four’s Today programme featured a segment on the safety failures at Boeing (about which you would already know plenty if you follow Cory Doctorow’s Pluralistic newsletter). An industry consultant, Scott Hamilton, observes in the segment that his future assessment of the company’s prospects depended, among other things, on ‘what they do about shaking up some more heads that have to, in my view, roll…’ It’s here; start listening at 20:45 to get the context.