State trooper accused of hitting, flipping pregnant woman's SUV in botched traffic stop

A terrifying scene was captured on video in Arkansas where a state trooper deliberately bumped a pregnant woman's car, causing it to hit the median and flip over. 

The officer said he performed the approved maneuver because the driver was speeding and didn't pull over. The driver, Janice Harper, said it was not safe to stop, CBS News' Jericka Duncan reports. The video is now evidence in a lawsuit.