The massive failures in providing water to disaster victims after Katrina inspired this private businessman to design a bottle that can make fouled water drinkable in seconds.
http://www.telegraph.co.uk/news/mai...GAVCBQ0IV0?xml=/news/2007/09/12/nwater112.xml
http://www.telegraph.co.uk/news/mai...GAVCBQ0IV0?xml=/news/2007/09/12/nwater112.xml