CASHEL, IRELAND - MAY 20: Queen Elizabeth II stands with Minister for Public Expenditure and Reform Brendan Howlin TD and Dr Eugene Keane as she meets with students from Cashel Community School the Rock of Cashel on May 20, 2011 in Cashel, Ireland. The Duke and Queen are on a historic four-day tour of the Republic of Ireland amid tight security, the first visit to Ireland by a British monarch since 1911. Republican dissident groups have made it clear they are intent on disrupting proceedings. Getty Images