How do we know it was his political views and not some screw up with his paper work? How do we know this incident is true and not manufactured as part of a publicity stunt? I understand the communication is through his publisher, does he have a book in the works? I just feel it is important to ask questions, that's all.
According to the article, his ESTA application (an electronic visa waiver program) had been approved before only to nevertheless be blocked. It does not seem to be an administrative error.
The problem is that he can't just call the embassy and ask why his entry was denied. They have a policy of not giving out information on entry denials.
He's not a citizen so can't make a FOIA request. No-one else can make one on his behalf as it would be breach rules on data protection and personal information.
What a feeble cop-out. Why do you feel it is important? After all if it is is important, you should be able to explain, in fact you are expected to do so.
It's important because we shouldn't be suckered into giving free publicity to a person.
Regardless of what you think of the immigration process in the US, many people misuse tourist visas to overstay/work.
The CBP often turn away people if they are suspicious that they might over stay their visa or commit other kinds of immigration fraud.
I just don't know if this person was turned away like many other people and is raising a stink because they have some star power (and think they should be treated specially).
Again, this is independent of how open you think borders should be, because then it comes under a different headline.