Tweeting ourselves to death: Obama’s social media warning

Barack Obama has given very few interviews since he left office almost a year ago, but if the one aired by BBC Radio 4 yesterday was any guide, we haven’t been missing much of pith and moment.
It probably wasn’t a fair guide, because the interviewer was Britain’s Prince Harry who, after this outing, would be well advised to stick to his career — and we use the word in its widest possible sense — as a celebrity fundraiser for good causes.