Sir John Tusa looks back at the events making the news 20 years ago. Margaret Thatcher address the Tory conference on her 64th birthday to chants of '10 more years', Douglas Hurd declares war on the 'scourge of acid house parties', and shares plunge in the last hour of trading on Wall Street, sparking fears of another Black Monday. A Somethin' Else production for BBC Radio 4.