How can "TITLE 8 > CHAPTER 12 > SUBCHAPTER II > Part VIII > § 1324. Bringing in and harboring certain aliens" make harboring an illegal alien criminal, but the illegal alien's presence itself is not criminal?
-PJ
It’s like being high. Possession of marijuana is illegal. However, if the police find you high in your living room, and you’ve smoked all of your marijuana leaving them nothing to find, there isn’t a damned thing they can do. Being high isn’t illegal in your living room, but possessing marijuana is, and you don’t have any (left).
</sarcasm>