IT is difficult to fathom what Dr Martin Mansergh TD really is saying on hidden history and the fate of Protestants in or around the 1920s (Letters, January 7).

IN THE foreword to Joe Cahill: A Life in the IRA (O’Brien Press, 25), Brendan Anderson explains that Cahill, a former chief of staff of the Provisional IRA, spoke to him “frankly about those things that he is free to speak about”.