It was a focus of local CND marches , its blast doors were fly posted .
It was open to the public for a week in 1982 for CND 's Hard Luck campaign which coincided with the dates of the cancelled Hard Rock exercise .
It was a focus of local CND marches , its blast doors were fly posted and it was open to the public for a week in 1982 for CND 's Hard Luck campaign which coincided with the dates of the cancelled Hard Rock exercise .