1) The document describes editing a radio broadcast about the London Bridge attacks, including introducing jingles and theme songs.
2) It discusses targeting a young audience in East London and choosing a serious topic about the London Bridge attacks that some may find upsetting.
3) The planning and structure of the radio segment helped it record smoothly, with researched content and questions for an interview with a victim's mother. Areas for improvement include being more prepared to avoid retakes and making the script sound more natural.