Are cellphones Safe?
ring, ring unknown phone call DANGER!
Like cell phones, other devices including radios, televisions, cordless phones, and pagers all safely transmit signals using RF radiation. Radio has used RF radiation since at least 1893  and television has used it since at least 1939.  The safe, long-term use of those RF-using devices helps prove that cell phones are also safe.Use of a cell phone while driving is not inherently unsafe. Many activities that distract drivers are much more dangerous than talking on a phone. Research shows that cell phone use is a factor in less than 1% of accidents and that adjusting the radio or CD player, talking with passengers, or eating, and drinking while driving are all responsible for more accidents than cell phones.  
What could they do?
Children may have an increased risk of adverse health effects from cell phone radiation. According to American Academy of Pediatrics President Dr. Robert Block, when cell phones are used by children, "the average RF energy deposition is two times higher in the brain and 10 times higher in the bone marrow of the skull," than for adults. A July 2008 peer-reviewed study shows that children under the age of eight absorb twice the amount of radiation into their brain tissue as adults due to their lower skull thickness. Using a cell phone while driving, even with a hands-free device, is unsafe and makes accidents more likely. The National Highway Traffic Safety Administration (NHTSA) estimates that driving distractions, including the use of cell phones, contribute to 25% of all traffic crashes. According to researchers at the University of Utah people who drive while talking on their cell phones are as impaired as drunk drivers with a blood alcohol level of 0.08%. 
the citation quote
Thanks to...Keith Black, MD, Chairman of the Department of Neurosurgery and Director of the Maxine Dunitz Neurological Institute at Cedars-Sinai Medical Center, made the following statement during a Mar. 24, 2009 "[I]f you take someone who's smoking cigarettes and starts smoking cigarettes at 12, you don't expect them to develop lung cancer at 22. You expect them to develop lung cancer at 42. When you have an environmental toxin it takes 20, 30 years to develop a cancer, usually, from that toxin. We've only had studies on the use of cell phones and brain cancer for 10 years, so we don't know what the impact of the use of cell phones will be over 20, 30, 40 years, particularly on our children, who are starting to use cell phones as early as seven and eight years old. And we also know that a young brain is much more susceptible to the dangers of cell phones."