A man in the U.S. has 'bought' an item on Amazon with a price tag of nearly three billion dollars - just to see what would happen. Brian Klug spotted the copy of the Discovery Channel's 'Cells' CD-ROM for sale at $2,904,980,000 (£1,800,979,540). Out of sheer curiosity, convinced the price tag was a mistake, he put in his credit card details to buy it and stepped back to see what would happen next. First off, Mr Klug from San Mateo, California, was charged $3.99 for posting and handling. Mr Klug has posted on the Reddit website links to the Amazon...