DUBLIN, IRELAND - MAY 17: Queen Elizabeth Il visits Trinity College Dublin on May 17, 2011 in Dublin, Ireland. The Queen's visit, accompanied by The Duke of Edinburgh, is the first by a monarch since ... more 
DUBLIN, IRELAND - MAY 17: Queen Elizabeth Il visits Trinity College Dublin on May 17, 2011 in Dublin, Ireland. The Queen's visit, accompanied by The Duke of Edinburgh, is the first by a monarch since 1911. An unprecedented security operation is taking place with much of the centre of Dublin turning into a car free zone. Republican dissident groups have made it clear they are intent on disrupting proceedings. (Photo by Irish Government - Pool/Getty Images) less 
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Tue, May 17, 2011 1:58 PM EDT