Sarah Smith asks whether the mistakes of the Poll Tax are about to be repeated.
Ed Byrne traces the history of offensive comedy while exploring the idea of censorship.
Suzanne Vega explores Lou Reed's complexities with New Yorkers who knew him well.
Author Jake Arnott traces the history of corruption in the Metropolitan police.
Was there a time when physical education did more harm than good?
Michael Goldfarb looks at the history of rude, violent debate that has marked US politics.
Wayne Hemingway charts 100 years of British advertising examining how we learned to sell.
Gareth Gwynn presents the first Archive on 4 that looks sideways rather than backwards.
The weapons of war born in the laboratory.
Elinor Goodman asks if there has ever been a golden era of public-spirited politicians.