Journalists (especially editors) need to learn from Sir John Keegan

As defence correspondent, then defence editor of The Daily Telegraph, i decided that entanglement with intelligence organisations was unwise, having concluded, by that stage of my life, through reading, conversation and a little personal observation, that anyone who mingled in the intelligence world, in the belief that he could make use of contacts thus made, would more probably be made use of, to his disadvantage. I continue to believe that to be the case