Okay, I can see for that one that you might say that you didn't pay them to enter the country and that you didn't help them find a home and so you aren't technically harboring.

But, what about this one?

18 U.S.C. § 1546

This says, "having reason to know." So, you actually don't have to really know, you just have to have reason to know, to be incarcerated. That really seems like I should check, if only to cover my own ass. Like if the picture wasn't clear but you accepted it anyway, you had reason to know? Seems pretty loose for anyone that wants to enforce it.

I'm clearly not an attorney, so if you are, please correct me.