President Barack Obama and King Abdullah spent two hours over dinner Friday night discussing their differences over Iran, Syria and the extremist threat as well as Israeli-Palestinian peace talks. No other meetings were scheduled for Obama’s flying visit to Riyadh. The king was attended by senior princes led by Crown Prince Salman, the newly-appointed second in line to the throne, Prince Muqrin, and Foreign Minister Saud al-Faisal. Obama’s party was led by Secretary of State John Kerry and National Security Adviser Susan Rice. The 92-year old monarch was connected to an oxygen feed, but he impressed his American visitors as sharp-witted and shrewd as ever. The White House stated after the meeting that the two leaders talked about ways to prevent Iran acquiring a nuclear weapon.