The NTSB is proposing a nationwide ban on the use of cell phones while driving but the ban would not apply to hands free devices or to use by passengers.
Although it would not eliminate the mental distractions caused by cell phone use, the ban would eliminate the physical distractions caused by holding the phone itself.
While I would rather that people exercise the common sense idea of not using a phone while driving it seems this kind of a law may be needed to stop the idiots who don’t exercise common sense.