U.S. Secretary of State John Kerry (left) shakes hands with Egyptian President Mohamed Morsi at the Presidential Palace in Cairo on March 3, 2013. (Associated Press)
Egyptian activists burn a poster depicting U.S. Secretary of State John Kerry during a protest outside the Egyptian foreign ministry in Cairo, Egypt, Saturday, March 2, 2013. Cairo is the sixth leg of Kerry's first official overseas trip and begins the Middle East portion of his nine-day journey. (AP Photo/Amr Nabil)
U.S. Secretary of State John Kerry, left, talks to Syrian opposition coalition leader Mouaz al-Khatib, during an international conference on Syria at Villa Madama, Rome, Thursday, Feb. 28, 2013. (AP Photo/Riccardo De Luca)
U.S. Secretary of State John Kerry adjusts his translation earphones while listening to German Foreign Minister Guido Westerwelle, not pictured, at a news conference at the Foreign Ministry in Berlin on Tuesday, Feb. 26, 2013. Berlin is the second stop in Kerry’s first trip overseas as secretary. (AP Photo/Jacquelyn Martin, Pool)
U.S. Secretary of State John Kerry (right) meets with with Russian Foreign Minister Sergey Lavrov in Berlin on Feb. 26, 2013. Berlin is the second stop in Kerry’s first trip overseas as Secretary of State. (Associated Press/dpa, Maurizio Gambarini)
U.S. Secretary of State John Kerry gives a statement after meeting with German Foreign Minister Guido Westerwelle at the Foreign Ministry in Berlin on Feb, 26, 2013. (Associated Press/dpa, Maurizio Gambarini)
** FILE ** U.S. Secretary of State John Kerry listens to a reporter's question during a joint news conference with Britain's Foreign Secretary William Hague, not seen, following their meeting in central London, Monday, Feb. 25, 2013. This is the first overseas trip for the U.S. Secretary of State in his new role. (AP Photo/Lefteris Pitarakis, pool)
U.S. Secretary of State John Kerry waves to the media as he leaves Downing Street in London, Monday, Feb. 25, 2013. Kerry kicked off his first official overseas trip by meeting with British leaders in London on the first leg of a hectic nine-day dash through Europe and the Middle East. (AP Photo/Kirsty Wigglesworth)