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The only question I have is why are Saudis, Afghanis, and Pakis not subject to this temporary halt, and then subjected to extreme vetting?”
Most likely a variety of reasons relating to their retaliation really hurting. We have to move supplies through Pakistan to Afghanistan. We have huge amounts of materials forward deployed in Saudi Arabia. Those are the two things that come to mind first. I am sure there are others.
It is also possible that despite their public stances they are supplying valuable intel on rival factions they disagree with. (Yes, they all sponsor terror, but not all terrorists like each other. It’s like one Mafia family ratting out another.)
Paki’s have nukes. We give Pak loads of money to keep their finger off the trigger.