You can look into the media. I know Fox is partially owned by a Saudi.
And into ports - there are some Arab companies that manage ports in the US.
And into oil - that his probably how the Arabs have so much influence of the Bush famiily.
Certainly, the Saudis will fling a pallet of money at any school book publisher that describes Islam they way they want it described.
But, mostly, it is the anti-Western mindset of the modern Fellow Traveler.
I wish there was some way that we could put some nations if not on an enemy list then on a “sketchy country” list. We are not at war with them but we do not want them messing in our affairs either such as using subtle cultural subversion against us. We have to protect our core beliefs.