British responses to terror
Prince Philip visits the Mulberry Bush, one of the Birmingham pubs attacked by the Provisional IRA in November 1974
© TRINITY MIRROR/MIRRORPIX/ALAMY STOCK PHOTO
On 13th December 1867, in an attempt to free imprisoned members, the Irish Republican Brotherhood exploded a bomb against a wall of Clerkenwell Prison in London. The blast brought down 60 feet of the wall. No one escaped, but 12 people were killed and 120 others injured in nearby houses. The deaths enraged the public. Karl Marx observed: