Protestors and police outside Conway Hall as the pro-paedophile activist group, the Paedophile Information Exchange (PIE) holds its first open meeting, London, 19th September 1977. Members of PIE were attacked and pelted with eggs, stink bombs and rotten fruit as they arrived at the meeting. Some of the protestors (centre and right) are carrying placards produced by the far-right National Front party, one of which reads: 'A cess pit is too good for these vile people'. (Photo by Malcolm Clarke/Keystone/Hulton Archive/Getty Images)