It's still a big problem in the US; texting and driving.
Distracted driving has led to fatal accidents and has lead to ongoing attempts to enforce texting while driving laws. For law enforcement, these laws are difficult because officers have no way of detecting if drivers are texting and driving unless they actually see them doing it.
ComSonics, a Virginia-based company, is working on a solution to this ongoing issue. The company is developing a radar gun will not only tell officers the speed of the vehicle, but also whether or not the driver is texting.
Radio frequency helps detect active texts, although it cannot determine whether or not it is the driver or the passenger that is texting. What is can do is alert officers whether or not a driver behind the wheel is texting and help save lives.