Jennifer Smith, a Texas real estate agent, remembers when she considered her car an office, her cellphone a professional lifeline. If it rang, she picked it up. If she thought of information to share, she dialed. She knew that it wasn’t the best idea to chat while driving, of course, but it wasn’t illegal, and she didn’t want to lose clients. Besides, she figured, she was careful.
But then, in September last year, a driver using a cellphone plowed through a red light and slammed into Ms. Smith’s mother’s mini-SUV. Linda Doyle, who’d been on her way to pick up cat food for the Central Oklahoma Humane Society, where she was a regular volunteer, died the next morning.