I don't know, they kiss a lot of American ass in the article and it is essentially just trespassing. Sounds like they want to make sure they can come back to NYC with no hassle.
Unfortunately, I don't think this will happen. I would not be surprised if these individuals will never be allowed entry to the US again. People have been turned at the border for less. And similar breach of security events in the past have been prosecuted using terrorism laws.
I do hope that I am wrong, though.