Clown shoes…None of those Seven countries (as well as other countries in the middle east, or the rest of the world for that matter) do any vetting of people looking to legally immigrate to the United States. It’s done by the United States by Americans employed and working at local U.S. Consulates and / or embassies working with the U.S. State Department, Homeland Security, the FBI, etc. etc. to check and analyze backgrounds of immigration applicants.