Gavin Newsom just used a QR code to announce his decision to sign a bill
California Gov. Gavin Newsom has embraced the QR code. Patrick T. Fallon / AFP via Getty Images California Gov. Gavin Newsom signed a bill to add QR codes to student ID cards. Then, he used a QR code to announce he had signed the bill into law. The bill’s author said it was the first …