Fingerprint payments

Consumers embarking on a shopping spree may be able to leave their wallets behind in the near future, despite some security and privacy experts' concerns. This week, Pay By Touch Solutions, a San Francisco-based firm whose system allows customers to pay at participating grocery stores with the press of a finger, announced that investors have pledged $130m to fund the company's expansion plans. And, rival BioPay has already enrolled more than two million people into its service for cashing payroll checks and paying at the supermarket checkout.