'John O'Mahony's Insurrection', researched and written by James 'Jim' Ryan, details the unsuccessful 1848 uprising led by the South Tipperary farmer in Carrick-on-Suir and its environs, South Kilkenny and East Waterford. KCLR's Dermot Keyes spoke to Jim at the book's launch at Ormond Castle in Carrick-on-Suir.