Is the iPhone to blame for so much texting and driving?

Most of us have texted while driving, even though it’s dangerous behavior that causes hundreds of thousands of accidents every year. So what can be done to stop people from doing it? If laws banning texting while driving aren’t working, what could? A class action lawsuit filed recently argues that Apple should be taking more responsibility for drivers’ risky behavior. We hear from one of the attorneys who filed the suit, and a law professor with expertise in the field.