They say you should never meet your heroes, but in our latest episode, interviewer becomes interviewee as James speaks to Rachel Humphreys, co-host and producer of his favourite podcast, The Guardian's Today in Focus. It was, Rachel tells James, a Guardian staffer who invented the word "podcast" and The Guardian has long been committed to using audio to tell its stories. In this extended episode, Rachel talks to James about how she and the rest of the Today in Focus team put together each...