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)

Photo by: Kirsty Wigglesworth

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)