I'm not sure if you all heard about this yet, but it's most likely a true story, as it's all over the consumer's FB page (which I saw for myself) and Kraft Food's official FB page, as well.
In short, a man was giving his daughter one of the pouches, and it was sticky when he pulled it out of the box. It began to leak so he went to hold it over the sink. As the juice leaked out, he felt a large object inside. They cut it open and found something incredibly gross. The lady said that the moment they opened it, the smell stunk up the whole house! She said it was horrendous.
When she first posted the pics on FB a few days ago, people speculated that it was a human body part, then someone guessed it was a frog part... someone else said it was an eye (which I don't get because it looks nothing like an eye and it's about the size of the palm of a small hand, and flat). For days, folks all over FB were speculating about what it could be. It actually looks like a mushroom-like mass that indeed came from a human's insides... When I saw it, I definitely thought it was a body part. Kraft sent it to their labs as well as an independent lab for testing.
It turns out that it was MOLD. Yes, mold. Inside a CapriSun pouch. That they were about to give to their child.
WARNING: the article has pictures of the mold, and it is absolutely GROSS. If you have a weak stomach, you may not want to see this.
http://msjacks.wordpress.com/2010/06/11/foreign-object-in-capri-sun-what-is-this-thing/