According to a recent study, state laws banning the use of handheld devices behind the wheel have not resulted in fewer car accidents. Investigators reviewed insurance claims from crashes before and after such bans took effect in California, New York, Connecticut, and Washington, DC, and found that claims rates did not go down after the laws were enacted. The findings seem to conflict with current knowledge surrounding the use of handheld devices while driving. One potential explanation is that in states with such bans, drivers are turning increasingly to hands-free devices, which experts say pose just as much risk as the handheld ones.