Faced with a huge growth of working class power, with strikes, occupations, self-reduction of prices and mass squatting the intelligence services began carrying out terrorist acts with the help of fascist groups. Anarchists and the left were blamed, and working class militants were arrested. The worst such attack was the worst terrorist attack in Europe in the 20th Century – the bombing of the Bologna train station which killed 85 people
— Read on libcom.org/article/1969-strategy-tension-italy