I read about this in our local paper.

Here is the article our paper published : http://www.foxnews.com/story/0,2933,140467,00.html

What is amazing to me is that polyethylene glycol (PEG) is "a nontoxic liquid polymer composed of long strings of the same type of molecules found in antifreeze." Slight differences between molecules can result in such significant differences in physical properties and I never cease to be amazed by it.