Britain’s public broadcaster came under fire on Friday for compromising over the song Ding Dong! The Witch Is Dead that was sent flying up the UK charts by a campaign to celebrate former prime minister Margaret Thatcher’s death. The song from the 1939 film The Wizard of Oz is vying for the No 1 slot in the UK’s weekly list of the top 40 best-selling singles that are usually played in full on a BBC Radio 1 chart show on Sunday