This is addressed a bit in the article. You can just tell them "I don't have a Facebook account", and there's really no easy way for them to verify this. If you

This is addressed a bit in the article. You can just tell them "I don't have a Facebook account", and there's really no easy way for them to verify this. If you're extra paranoid, you can create secondary accounts without much info and innocent posts/messages. There's no way for them to know you're logging into your border patrol FB account and not your "real" account.