Hints and tips:
...Plus, I like to think we are not as naive as early 20th century Europeans who had no idea what modern mass warfare could wreak....
...The basic idea was that a digital image of your face, transmitted in real time to an internet-enabled cash register for the cashier to see, would be a much more effective identity check than a signature...
...At the end, they return, tally sales with the cashier and match them to the receipts. The money is then sent to headquarters. Sixty per cent is paid by credit cards....
International Edition