King Abdullah of Saudi Arabia, right, welcomes US President Barack Obama, left, on his arrival at the Royal Terminal of the King Khalid International Airport, in Riyadh, Saudi Arabia, Wednesday, June 3, 2009. (AP Photo/Hassan Ammar)

Photo by: Hassan Ammar

King Abdullah of Saudi Arabia, right, welcomes US President Barack Obama, left, on his arrival at the Royal Terminal of the King Khalid International Airport, in Riyadh, Saudi Arabia, Wednesday, June 3, 2009. (AP Photo/Hassan Ammar)