There are several references to this story circulating the internet. Basically, the story talked about the dangers of plastic bottle that are categorized as #3, 6, and 7 (You can find that information on the bottom of them bottle inside the triangle). Many water bottles, like Nalgene bottles, and even baby bottles, have the triangle with the #7 on it. The problem is that the plastic is made of polycarbonate (PC) which is composed of a hormone-disrupting chemical called bisphenol A (BPA). This chemical has been linked to health problems such as as cancer and may even influence infertility. Now that is pretty scary. Some say the chemical is only released when microwaving the bottle or heating it and other say that it is unsafe period.
This article will of course effect the sales of Nalgene bottles and such, since they are in this category of plastic. Some government agencies, including the U.S. Food and Drug Administration, says that their review of the research shows BPA to have no risk to human health. Nalgene cites this information on their website regarding the safety of their bottles.