FROM CNN's Jack Cafferty: San Francisco could become the first city in the country to require radiation labels for cell phones. [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/images/12/17/art.phone.store.jpg caption=""] Mayor Gavin Newsom is backing a proposal that would require stores to post the radiation levels next to each cell phone – in a size at least as large as the … Continue reading Should cell phone stores have to post radiation levels?