Because Obviously It's a Crime If Your Body Rejects a Fetus

I saw this story linked over at I Blame The Patriarchy. I think Twisty's analysis covers it all. While discarding a miscarried fetus into the garbage might not sound like the greatest idea out there, what else was the teenager supposed to do with it? Alert the pilot and give it to him? The article states they decided not to charge her "with any wrongdoing" but it was a miscarriage - what could they have possibly held her for? Disposal of biohazardous waste in a public restroom?