Verizon Backs Ban on Hand-Held Car Phones. In a major turnabout, the nation’s largest cellular provider says it would favor legislation mandating hands-free communication for vehicular cellular users. Critics say it is not the handling of the device but the distracting absorption in conversation that poses the hazard. I have to admit I make calls — hands-free — while driving, and I have to agree that at times I have come to my senses to realize I’ve been driving without any conscious attention while engaged in a conversation…