Chicago is known for good steaks, expensive stores and beautiful architecture. Unfortunately, the Windy City also enjoys a reputation for corrupt politics, violent crime, and some of the strictest gun control laws anywhere in the country.
Courts have long recognized the federal government's robust power to inspect people and goods entering the country. After all, the very foundation of national sovereignty is a nation's ability to protect its borders.
Iran is not a make-believe country. It is a real country populated by some 75 million people - real people; including, I daresay, a majority who are philosophically and by education inclined toward the modern, secular world, and particularly American values.