Former Middle East studies professor at Harvard and Chicago (and US government official), William Polk, is still alive. He recently received an invitation to visit Saudi Arabia from his friend, Sultan bin Salman, who he met in southern France. So Polk visited the Kingdom and came back with a glowing report which he circulated to some of his friends. One of them published in a Saudi newspaper. Don't you like experts on the Middle East when they praise the Saudi kingdom? I am sure it is based on "shared principles" and "love of knowledge".