Drivers in Chapel Hill may soon have to refrain from talking on their cell phones. A proposed ban on the practice is being considered in a public hearing tonight. Penny Rich serves on the town council. She says a second draft makes the proposal more enforceable by making it a second offense rather than a primary offense. She says that means drivers won't be pulled over for speaking on cell phones, but if they commit another violation while using the device, they would be written up for both offenses.