Government unveils violent teen texting ad

The U.S. Department of Transportation's National Highway Traffic Safety Administration has just released a disturbing new 30-second video aimed to get drivers to keep their phones in their pockets while behind the wheel.

The clip shows a group of young people driving, checking their cellphones and talking about a crossword puzzle.

The driver's phone beeps. She looks down to check it as she drives through a stop sign.

A truck plows into their car, rolling it end over end down a deserted street.

A study from the University of Michigan Transportation Research Institute found that roughly 25 percent of teenagers respond to a text at least once every time they drive.