17 March, 2003; revised 22 April, 2003.
A much abbreviated and modified version of this article appeared as “Aids and the polio vaccine”, London Review of Books, Vol. 25, No. 7, 3 April 2003, http://www.lrb.co.uk/v25/n07/hoop01_.html
When their leaders cannot be relied upon, people believe what they are led to believe. Truth and knowledge become perverted by political expediency, by the needs of the day.