Riyadh, 29 April (AKI) - Saudi Arabia's Crown Prince Abdullah's visit to the United States this week to discuss oil matters with President George W. Bush, took place amid growing speculation back home that the bed-ridden King Fahd's condition has worsened with the monarch slipping out of conciousness. Speculation is rife among Riyadh's ruling elite of Fahd's clinical death - but even if this were true, any official announcement would delayed until a final decision on Fahd's successor has been taken. Sources close to the Saudi royal family told Adnkronos International about the "suspicious" disappearance of King Fahd from...