Perhaps the user is referring to the allegations that US intelligence agencies, using the State Department as a proxy, let people into the US who otherwise would have been denied.
The US is under no obligation to accept immigrants from anywhere. We're under no obligation to be "fair". And yes, I'm telling you we should be keeping a list of countries with significant anti-US terrorist movements and not allowing immigration from those countries. If you're from KSA or Yemen or Pakistan I would not have allowed you to immigrate.
Its okay, be strait with me. You won't hurt my feelings.