US President Barack Obama (L) stands near Germany's Chancellor Angela Merkel the G20 summit. (KIRILL KUDRYAVTSEV/AFP/Getty Images)
LONDON — What is journalism? Who is a journalist? There no longer seems to be any agreed definition of the trade I have followed for half a century. My Second Edition of the digital Oxford Dictionary of English defines a journalist as “a person who writes for newspapers or magazines or prepares news to be broadcast on radio or television.” That is clearly out of date.