File photo of U.S. Secretary of State Clinton delivering a speech at Dublin City University in Ireland

 
File photo of U.S. Secretary of State Clinton delivering a speech at Dublin City University in Ireland
U.S. Secretary of State Hillary Clinton delivers a speech "Frontlines and Frontiers: Making Human Rights a Human Reality" at Dublin City University in Ireland in this file photo from December 6, 2012. Clinton was sent to the hospital December 30, 2012 with a blood clot stemming from a concussion she suffered earlier this month and was being assessed by doctors, a State Department spokesman said. REUTERS/Kevin Lamarque