The recent news that data from 40 million credit and debit cards used at Target department stores was hacked has raised concerns about the security of plastic bank cards. These contain financial information on a magnetic strip or a memory chip embedded in the plastic. Scientists in Britain are now experimenting with embedding data not in a chip, but in the plastic itself. The method is in its early stages but the company developing the technology says some credit card companies are showing interest. VOA's George Putic has more.