Fresh off presiding over a global financial summit, President George W. Bush on Sunday conferred privately about the world's economic downturn with the leader of a wealthy Persian Gulf emirate. Bush was hosting Sheik Mohammed Bin Zayed Al Nahyan, the crown prince of Abu Dhabi, at the president's wooded retreat at Camp David, Maryland. The visit marked the second time in just five months that the crown prince received a coveted invitation to the secluded compound. "They always have a good time meeting with each other," White House national security spokesman Gordon Johndroe said Sunday. The two leaders were scheduled to discuss the world's deteriorating financial stability, as well as Middle East security.