No Justice: The Birmingham Pub Bombings at 50

It's 50 years since the Birmingham pub bombings killed 21 people, one of the most devastating terror attacks ever carried out in England, but no-one has ever been brought to justice.We speak to the people who were there in 1974 and we investigate how the 'Birmingham 6' were jailed for 16 years for the bombing - a crime they didn't commit.Picture © Alamy