Historian, Thomas Mahon, With the aid of a former FBI code breaker, Jim Gillogly, has spent the past few years breaking the IRA's secret communications code, used to pass messages back and forth between Ireland and America from the 1920s until th e1960s, the results are explosive.From discussions about mundane matters to considerations of deals with the USSR and China, the IRA letters delve into just about every matter concievable for a terrorist organisation. Some of the ideas are harebrained or cracked but some like the proposal to source gas for use in Ireland are dangerous and unnerving.With the eye of a historian and the tools of a professional code breaker, Thomas and Jim have together created a wonderful and engrossing read.