Former Columbia University president Lee C. Bollinger on the importance of free speech

The former president of Columbia University in New York, which was at the centre of sometimes violent protests against the war in Gaza, has spoken to FRANCE 24 about the importance of free speech and how universities have to teach it. Lee C. Bollinger is president emeritus of Columbia University; he ran it until just a year before the protests broke out. The university has long been known as a bastion of freedom of expression in the United States.