Another chance to look back at the events making the news 40 years ago with John Tusa. 48 passengers die in an air crash near Munich. Many are injured when a stand collapses at the National Jazz and Blues Festival in Kempton Park. Leonard Cohen appears on the BBC's Top Gear radio programme. Riots in Los Angeles leave three dead. Two deputy editors of the Czech Communist party newspaper are suspended. Record producer Mickie Most explains the secret of his success.