If I remember right that article is about 5 years old and has since been found a total lie and totally untrue.
Benny, if your going to write any info on the factory where the Prius batteries are made do some research. Theres alot of shitty info out there. The fact is that that place the batteries are made was one of the worst in the world when it comes to pollution in the 60s and 70s, which of course was well before the prius. Since then the place has done a total 180, they got rid of 95% of the sulfur pollutants and have one a ton of environmental awards. Alot of the wildlife around the place is still dead and dark but that all happened about 25-30 years before the prius was even thought of.