A mass student demonstration in Santiago yesterday calling for free education was supported by teachers and communities The organisers say the demonstration was supported by 150,000 people , including students, teachers and trade unions. This is the latest event in a long struggle for free public education in Chile.  Earlier this month students occupied high schools and were evacuated after a week by riot police. Yesterday's demonstration was attacked by police with tear gas and water cannon and 140 were arrested. It is perhaps significant that two of the most determined struggles for public education are taking place in Chicago - the spiritual home of neo-liberal 'reform' spearheaded by the Chicago University Economics department under Milton Friedman - and Chile, which provided the first opportunity for Friedman and the 'Chicago Boys' to test out  such 'reform' under dictator Pinochet.