Blood
All you have to do is spit into a plastic vial and put it in the mail and send it off somewhere, and then in a couple of weeks you'll get the results, and these are going to tell you who you are.
Which is what Ashton Garoutte's mother thought he wanted to know. Not the mother who birthed him, but the mom who adopted him when he was the newborn that was brought to her in a black station wagon in the middle of the night, with a tag tied to his carrier that read, "Baby Boy ___," the name having been left out to protect the apparently disgraced family from unwelcome identification... Read the whole story HERE