FILE - Secretary of State Hillary Rodham Clinton listens to a question 

FILE - Secretary of State Hillary Rodham Clinton listens to a question during a joint news conference with Irish Taoiseach Enda Kenny at the government building in Dublin, Ireland, in this Dec. 6, 2012 file photo. Clinton has been admitted to a New York hospital after the discovery of a blood clot stemming from the concussion she sustained earlier this month. Spokesman Philippe Reines says her doctors discovered the clot during a follow-up exam Sunday, Dec. 30, 2012. (AP Photo/Kevin Lamarque, FILE)
Associated Press
FILE - Secretary of State Hillary Rodham Clinton listens to a question during a joint news conference with Irish Taoiseach Enda Kenny at the government building in Dublin, Ireland, in this Dec. 6, 2012 file photo. Clinton has been admitted to a New York hospital after the discovery of a blood clot stemming from the concussion she sustained earlier this month. Spokesman Philippe Reines says her doctors discovered the clot during a follow-up exam Sunday, Dec. 30, 2012. (AP Photo/Kevin Lamarque, FILE)
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