Saudi Crown Prince Sultan bin Abdulaziz Al Saud (C), Lebanese Prime Minister Saad al-Hariri, (R) and Bahrain's ruler King Hamad bin Isa al-Khalifa attend a welcoming home celebration for the Crown Prince, in Riyadh December 13, 2009. The crown prince of top OPEC oil exporter Saudi Arabia returned to the kingdom on Friday after spending most of the year in Morocco following medical treatment in the United States. Prince Sultan, thought to be about 85, underwent an operation in New York in February and then went to Morocco, authorities said at the time without saying what he was suffering from. REUTERS/Stringer (SAUDI ARABIA - Tags: HEALTH POLITICS ROYALS)
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