The defence secretary, Ben Wallace, choked back tears on LBC earlier this week as the Taliban consolidated control in Afghanistan. ‘The big regret for me is that some people won’t get back,’ he said. Between 2003 and 2005, Wallace was overseas director at QinetiQ, the military technology firm created in April 2001 when the Defence Evaluation and Research Agency was privatised. Its revenues are around a billion pounds a year. Wallace’s contradictory roles – as a former senior executive at a company reaping financial rewards from the ongoing ‘war on terror’ and as a senior minister claiming rightly that much is owed by the UK to the people of Afghanistan – reflects a larger contradiction at the heart of the global war economy.