Millions of unbanked consumers unable to open a traditional bank account have turned to prepaid debit cards in recent years. But now these reloadable, and often untraceable, cards have also become a method of choice for criminals to transport a large amount of cash from one place to another. A new device aims to make it easier for police to seize these ill-gotten funds, but some advocates worry the card scanner could be putting legitimate prepaid card users’ civil rights at risk. [More]